Sobreuso de ecografía transvaginal en un hospital universitario privado de Argentina: estudio de corte transversal / Transvaginal ultrasound overuse in a private university hospital in Argentina: a cross-sectional study

Introducción. Si bien contamos con recomendaciones basadas en la evidencia en contra de realizar tamizaje de cáncer ovárico con ecografía transvaginal debido a que aumenta el riesgo de resultados falsamente positivos y de cascadas diagnósticas, sin disminuir la mortalidad por esta enfermedad, su solicitud en mujeres sanas es frecuente. Sin embargo, no conocemos la magnitud de la implementación de esta práctica, que constituye un cuidado de bajo valor. Objetivo. Documentar el sobreuso de ecografías transvaginales realizadas en forma ambulatoria en un hospital universitario privado de Argentina. Métodos. Estudio de corte transversal de una muestra aleatoria de ecografías realizadas en forma ambulatoria durante 2017 y 2018. Mediante revisión manual de las historias clínicas, la solicitud de cada ecografía fue clasificada como apropiada cuando algún problema clínico justificaba su realización, o inapropiada cuando había sido realizada con fines de control de salud o por una condición clínica sin indicación de seguimiento ecográfico. Resultados. De un total de 1.997 ecografías analizadas, realizadas a 1.954 mujeres adultas (edad promedio 50 años),1.345 (67,4 %; intervalo de confianza [IC] 95 % 65,2 a 69,4) habían sido solicitadas en el contexto de un control de saludo sin un problema asociado en la historia clínica y otras 54 (8,3 %; IC 95 % 6,3 a 10,7), por condiciones de salud para las que no hay recomendaciones de realizar seguimiento ecográfico. Conclusiones. Esta investigación documentó una alta proporción de sobre utilización de la ecografías transvaginales en nuestra institución. Futuras investigaciones permitirán comprender los motivos que impulsan esta práctica y ayudarán a diseñar intervenciones para disminuir estos cuidados de bajo valor. (AU)

Background. Although we have evidence-based recommendations against screening for ovarian cancer with transvaginalultrasound because it increases the risk of false positive results and diagnostic cascades without reducing mortality from this disease, its request in healthy women is frequent. However, we do not know the magnitude of the implementation of this practice, which constitutes low-value care. Objective. To document the overuse of transvaginal ultrasounds performed on an outpatient basis in a private university hospital in Argentina. Methods. Cross-sectional study of a random sample of outpatient ultrasounds performed during 2017 and 2018. Through a manual review of the medical records, the request for each ultrasound was classified as appropriate when a clinical problem justified its performance or inappropriate when it was carried out for health control purposes or for a clinical condition that had no indication for ultrasound follow-up. Results. Of a total of 1997 ultrasounds analyzed, performed on 1954 adult women (average age 50 years), 1,345 (67.4 %;95 % confidence interval [CI] 65.2 to 69.4) had been requested in the context of a health check-up or without a documented problem in the medical history that would support its performance, and another 54 (8.3 %; 95 % CI 6.3 to 10.7), for health conditions for which there are no treatment recommendations to perform ultrasound follow-up. Conclusions. This research documented a high proportion of overuse of transvaginal ultrasound in our institution. Future research will allow us to understand the reasons that drive this practice and will help design interventions to reduce thislow-value care. (AU)

Manejo con cirugía conservadora de tumor mucinoso infiltrante ovárico coexistente con tumor mucinoso borderline contralateral en gestante de 8 semanas / Conservative surgery for management of invasive mucinous ovarian tumor with concurrent borderline mucinous tumor on contralateral ovary in a woman in 8th week of pregnancy

INTRODUCCIÓN: Aproximadamente un 4% de mujeres embarazadas presentan tumoraciones anexiales en el primer trimestre de gestación, siendo la mayoría quistes anexiales simples. Solo el 1,5% persisten tras el primer trimestre y en torno al 0,9% son malignos. CASO CLÍNICO: Paciente de 31 años que consultó en urgencias por sangrado y amenorrea de 5 semanas. La ecografía transvaginal evidenció un saco gestacional intraútero y una tumoración anexial izquierda compleja de 68 mm, multilocular, sólida, de ecogenicidad mixta, con septos gruesos y un área sólida vascularizada de 40 mm, sospechosa de neoplasia de ovario. Se realizó manejo quirúrgico conservador mediante anexectomía bilateral laparoscópica en la octava semana de gestación. El diagnóstico fue de adenocarcinoma mucinoso infiltrante bien diferenciado en ovario derecho, coexistente con tumor mucinoso borderline en ovario izquierdo (etapa IC FIGO). El embarazo cursó con normalidad, a excepción de feto pequeño para la edad gestacional en la semana 39. Se finalizó la gestación en la semana 40 mediante parto vaginal. Debido al deseo de la paciente, la cirugía se realizó en el primer trimestre de embarazo en lugar de en el segundo como se recomienda. La cirugía se completó meses después del parto, con histerectomía y apendicectomía laparoscópica. DISCUSIÓN: El cáncer de ovario es el segundo tumor ginecológico más diagnosticado durante el embarazo. Suele diagnosticarse en el primer trimestre debido al cribado ecográfico gestacional. Ocurre en mujeres con baja paridad y en sus últimos años de edad reproductiva. Esto podría verse reflejado en un aumento de su incidencia debido al retraso de la edad materna al primer embarazo. Normalmente se diagnostica en etapa I, siendo entonces la supervivencia superior al 90% a los 5 años. En etapas iniciales en mujeres embarazadas, la laparoscopia es tan válida como la laparotomía.

INTRODUCTION: Approximately 4% of pregnant women present adnexal tumors in the first trimester of gestation, the majority being simple adnexal cysts. Only 1.5% persist after the first trimester and around 0.9% are malignant. CASE REPORT: 31-year-old patient who came to the emergency room because of spotting and 5-week amenorrhea. A transvaginal ultrasound revealed an intrauterine gestational sac and a 69 mm complex multiocular-solid left adnexal tumor, with thick septa and a solid vascularized area of 40 mm, with suspicion of ovarian neoplasia. Conservative surgical management was performed through laparoscopic bilateral salpingo-oophorectomy in eighth week of gestation. The diagnosis was a well-differentiated infiltrating mucinous adenocarcinoma in the right ovary, and a coexisting borderline mucinous tumor in the left ovary (FIGO stage IC). The pregnancy proceeded normally except for a small for gestational age fetus at week 39 and pregnancy was completed at week 40 by vaginal delivery. Due to the patients wishes, the surgery was performed in the 1st trimester of pregnancy instead in the 2nd as is recommended. Final surgery was completed after giving birth, with laparoscopic hysterectomy and appendectomy. DISCUSSION: Ovarian cancer is the second most diagnosed gynecological tumor during pregnancy. It is usually diagnosed during the first trimester with gestational ultrasound screening. It occurs in women with low parity and in their later years of reproductive age. This could be reflected in an increase in its incidence due to the delay in the age of first pregnancy. Normally it is diagnosed in stage I, when the survival rate is superior to 90% after 5 years. In early stages, laparoscopic surgery in pregnant women is as valid as laparotomy.

CA 125 elevado en contexto de endometrioma: reporte de caso / Elevated CA 125 in the context of endometrioma: case report

Introducción: Los tumores benignos de ovario corresponden a un 60-95% de las lesiones anexiales, en edad fértil los más frecuentes corresponden a quistes foliculares y endometriomas. Sin embargo, alrededor del 15% son patología maligna de ovario. Por lo que se debe evaluar aspectos como edad, características ecográficas y la presencia de marcadores tumorales específicos como CA 125. Objetivo general: Describir un reporte de caso y caracterizar la evidencia disponible sobre el abordaje de tumores benignos de ovario. Caso Clínico: Se presenta el caso clínico de una paciente en edad fértil de 43 años, cursando con dolor abdominal asociado a masa anexial, donde destaca la elevación del marcador CA 125 en rango de malignidad, por lo que se solicita valoración por oncología y manejo quirúrgico, confirmándose una masa anexial benigna de características quísticas, sugerente de endometrioma, al descartar patología maligna se realiza quistectomía total. Discusión: La patología anexial es una entidad clínica que puede abarcar características tumorales, ya sean benignas como malignas, por ello frente a lesiones ováricas, siempre se deben descartar estas últimas. Las características ecográficas de la paciente hacían sospechar de un endometrioma, el CA 125 elevado en ella hizo que se optara por un manejo quirúrgico oncológico con biopsia rápida para descartar o confirmar malignidad. Conclusión: Ante la presencia de endometriomas, el tratamiento debe discutirse caso a caso, teniendo en cuenta la sintomatología, deseos de fertilidad futura y tamaño de las lesiones.

Introduction: Benign ovarian tumors correspond to 60-95% of adnexal lesions, in childbearing years the most frequent correspond to follicular cysts and endometriomas. However, about 15% are malignant ovarian pathology. Therefore, aspects such as age, ultrasound characteristics and the presence of specific tumor markers such as CA 125 must be evaluated. General objective: Describe a case report and characterize the available evidence on benign ovarian tumors. Case report: A case of a 43 year old female of childbearing age, presents abdominal pain associated with an adnexal mass, where CA 125 elevations are found in the range of malignancy, for which an oncology evaluation and surgical management. A benign adnexal mass with cystic characteristics is confirmed, suggestive of endometrioma, when malignant pathology is ruled out, a total cystectomy is performed. Discussion: Adnexal pathology is a clinical entity that can include tumor characteristicas, whether benign or malignant, therefore, in the face of ovarian lesions, these should always be ruled out. The sonographic characteristics of the patient made one suspect an endometrioma, the elevated CA 125 in it led to an oncological surgical management with rapid biopsy to rule out or confirm malignancy. Conclusions: In the presence of endometriomas, treatmentshould be discussed individually, taking into account the symptoms, wishes for future fertility, and size of the lesions. Keywords: Ca-125 antigen, Endometriosis, Ovarian neoplasms

Reporte de un caso fatal de encefalitis autoinmunitaria asociada a teratoma ovárico / Report of a fatal case of autoimmune encephalitis associated with an ovarian teratoma

INTRODUCCIÓN: El teratoma del ovario es el tumor de células germinales más frecuente. Entre sus complicaciones se describen algunos síndromes paraneoplásicos, como la encefalitis por anticuerpos contra el receptor N-metil-D-aspartato (NMDA). CASO CLÍNICO: Mujer de 22 años sin antecedentes de importancia que consulta por cuadro clínico de 4 días de evolución caracterizado por síntomas psiquiátricos y un episodio convulsivo. Se considera un cuadro de meningoencefalitis y se indica manejo antibiótico de amplio espectro y antiviral. Ante el deterioro se sospecha una encefalitis autoinmunitaria, se identifica un tumor anexial en los estudios imagenológicos compatible con teratoma y se confirma el diagnóstico con el hallazgo de anticuerpos NMDA en el líquido cefalorraquídeo. A pesar de su resección y manejo sistémico, fallece a los 5 meses. DISCUSIÓN: La encefalitis autoinmunitaria asociada a un teratoma es inusual, pero es una complicación que debe sospecharse como diagnóstico de exclusión. La mayoría tienen un pronóstico favorable, aunque hasta una cuarta parte de los casos puede asociarse a daño irreversible en la corteza del hipocampo e incluso la muerte, principalmente cuando el diagnóstico y el tratamiento son tardíos. CONCLUSIONES: Este caso es un reto clínico que representa un vacío en la evidencia actual, puesto que no existe un estándar de manejo de los teratomas. Se propone que, una vez diagnosticado un teratoma, se realice una cistectomía ovárica. Son necesarios más estudios para validar esta recomendación.

INTRODUCTION: The ovarian teratoma is the most common cell germ tumor. Some paraneoplastic syndromes have been described, including the anti-N-methyl-D-aspartate (NMDA) receptor encephalitis as part of its complications. CASE REPORT: A 22 years old female patient with no important medical history, consults due to an acute psychotic disorder and a convulsion. A meningoencephalitis was considered and broad-spectrum antibiotics and antivirals were started. Faced with deterioration, an autoimmune encephalitis is considered as well. Imaging studies revealed an ovarian teratoma and diagnosis was confirmed with antibodies against NMDA receptor in cerebrospinal fluid. Despite its resection and systemic management, the patient dies after 5 months. DISCUSSION: The autoimmune encephalitis associated with an ovarian teratoma is rare, its a complication that must be suspected as an exclusion diagnosis and most have a favorable prognosis, however up to a quarter of cases can be associated with irreversible damage to the hippocampal cortex and even death, mainly when late diagnosis and treatment are made. CONCLUSIONS: This case is a clinical challenge, no evidence is available since there is no standard for teratoma management. It is proposed that once a teratoma is diagnosed, an ovarian cystectomy is performed. Further studies are necessary to validate this recommendation.

Tumor de células de Sertoli-Leydig: a propósito de un caso y revisión de la literatura reciente / Ovarian Sertoli-Leydig cell tumour: a clinical case and recent basic literature review

INTRODUCCIÓN: Los tumores de células de Sertoli-Leydig son neoplasias de ovario infrecuentes, lo que dificulta su diagnóstico y tratamiento. OBJETIVO: Revisar y sintetizar el manejo actual de los tumores de células de Sertoli-Leydig. MÉTODO: Se realizó una revisión de la literatura reciente sobre tumores de células de Sertoli-Leydig, a propósito de un caso en nuestro centro. RESULTADOS: Los tumores de las células de Sertoli-Leydig son infrecuentes, con mayor incidencia en edades tempranas. Ante una paciente joven con una lesión anexial unilateral y signos de virilización deberán considerarse estos tumores dentro del diagnóstico diferencial. En los estadios iniciales y en pacientes jóvenes podrá plantearse un tratamiento quirúrgico que preserve la fertilidad, y la asociación de tratamiento adyuvante dependerá de la diferenciación y del estadiaje del tumor.

INTRODUCTION: Sertoli-Leydig cell tumors are infrequent ovarian neoplasms, which difficults their diagnosis and treatment. Objective: To review and synthesize the current management of the Sertoli-Leydig cell tumor. METHOD: A review of the recent literature regarding the Sertoli-Leydig cell tumor was carried out, regarding a case in our center. RESULTS: Sertoli-Leydig cell tumors are an infrequent entity, with a higher incidence in early ages. In a young patient with a unilateral adnexal lesion and signs of virilization, these tumors should be considered within the differential diagnosis. In early stages and young patients, a surgical treatment that preserves fertility may be considered, and the association of adjuvant treatment will depend on the differentiation and staging of the tumor.

Tumores ováricos en pediatría: revisión de los casos en un servicio de pediatría durante 10 años / Pediatric ovarian tumors: a 10-year review in a pediatric service

Los tumores ováricos, a diferencia de lo que sucede en la edad adulta, son infrecuentes en la población pediátrica. Predomina la estirpe germinal, con altas tasas de supervivencia. El objetivo de este estudio es presentar la epidemiología, clínica, diagnóstico y tratamiento de las pacientes de 0-15 años con diagnóstico, entre 2007 y 2017, de tumor ovárico en nuestro centro. Fueron 8 los casos encontrados de 171 tumores diagnosticados (el 4,7 %), con edad media de presentación de 12,5 años. Predominaban, al momento del debut, alteraciones menstruales, dolor abdominal y aumento de perímetro abdominal. Fueron de tipo germinal 6/8, y el teratoma maduro fue el más frecuente. Todas se diagnosticaron con ecografía abdominal, y se confirmó el diagnóstico en 7/8 con resonancia magnética. Se intervinieron todos los casos; predominó la salpingo-ooforectomía, y una paciente precisó quimioterapia adyuvante. La supervivencia libre de enfermedad fue del 100 %.

Unlike adults, ovarian tumors are infrequent in the pediatric population, predominating the germ line at this age, with high survival rates. The objective is to present the epidemiological, clinical, diagnosis and therapeutic characteristics of 0 to 15-year-old patients diagnosed with ovarian tumor in our center between 2007 and 2017.Eight cases out of 171 diagnosed tumors (4.7 %) were found, with a mean age of presentation of 12.5 years. At the moment of diagnosis, menstrual disturbances, abdominal pain and an increase in abdominal circumference predominated. Six out of eight were germ cell tumors, being the mature teratoma the most frequent one. All cases were diagnosed with abdominal ultrasound scan, confirmed in 7/8 cases with magnetic resonance imaging. All cases underwent surgery, predominating salpingo-oophorectomy with one patient requiring adjuvant chemotherapy. Disease-free survival was 100 %.

Presentación inusual de teratomas ováricos bilaterales en gemelas / Bilateral ovarian mature teratomas in twins: an unsual presentation

RESUMEN Los teratomas maduros son los tumores ováricos más frecuentes en edad pediátrica. A la fecha, se han descrito escasos reportes sobre su aparición en gemelas. Se presenta el caso de teratomas ováricos bilaterales en gemelas bicoriales, tratadas con tumorectomía laparoscópica. A los 45 días post-operatorios, ambas presentan recurrencia bilateral con marcadores tumorales negativos. Se realiza una nueva tumorectomía laparoscópica, cuyo estudio histopatológico confirma teratomas maduros. Presentan segunda recurrencia evidenciada en control imagenológico a los 2 meses post-quirúrgicos. Se plantea la posible asociación genética y/o familiar en la aparición de teratomas ováricos, la cual, hasta el momento, es prácticamente desconocida.

ABSTRACT Mature cystic teratomas are the most frequent ovarian tumor in children. There are few reports describing mature teratoma in twins to date. We present a case of bicorial twins with bilateral ovaric mature cystic teratoma treated with laparoscopic tumorectomy. 45 days after surgery, both present bilateral recurrence with negative tumor markers. The patients underwent a new laparoscopic tumor resection, where histopathological diagnosis confirms mature teratomas. Ultrasound control describes second recurrence 2 months after surgery. There is a possible genetic and/or family association in the presentation of ovarian teratomas, which currently, is unknown.

Curva de aprendizaje para el diagnóstico ecográfico específico de masas anexiales / Learning curve for the specific ultrasound diagnosis of adnexal masses

OBJETIVO: Determinar el tiempo que requiere una curva de aprendizaje para diagnóstico ecográfico específico histopatológico en masas anexiales basándonos en cálculos estadísticos no influidos por la prevalencia según diferentes grados de experiencia. MÉTODOS: Estudio observacional, descriptivo, transversal. Se estudiaron imágenes de 108 masas anexiales. La prueba estándar de oro fue el reporte histopatológico definitivo. Se comparó el rendimiento diagnóstico de 4 examinadores con la siguiente experiencia en diagnóstico ecográfico de patología anexial: A > 20 años, B ≤ 20 hasta > 10 años, C ≤ 10 hasta > 5 años y D ≤ 5 años, analizando solo imágenes y sin datos clínicos de las pacientes, para emitir un diagnóstico específico a libre escritura. RESULTADOS: Prevalencia de masas malignas 17,2 % (15/87). Nivel de confianza en los examinadores se consideró según falta de respuesta diagnóstica: alto (<6 %) con experiencia de más de 10 años y moderado a bajo ≤ 10 años. Examinadores con más de 5 años siempre mostraron likelihood ratio positivo mayor a 10, exactitud diagnóstica mayor a 90 % y Odds ratio diagnóstica mayor a 46, no así para examinador con menor tiempo de experiencia, quién presentó resultados con mala utilidad clínica. El cambio de probabilidad de acierto específico pre-test a post-test mejoró consistentemente con los años de experiencia. CONCLUSIÓN: Se necesitarían más de 10 años de experiencia con especial dedicación a ecografía ginecológica avanzada para un rendimiento diagnóstico específico deseado junto con alta confianza en ecografía de masas anexiales.

OBJECTIVE: To determine the time required for a learning curve of histopathological specific ultrasound diagnosis in adnexal masses based on statistical calculations not influenced by prevalence according to different degrees of experience. METHODS: Observational, descriptive, cross-sectional study. Images of 108 adnexal masses were studied. The gold standard test was the definitive histopathological report. The diagnostic performance of 4 examiners with the following experience in ultrasound diagnosis of adnexal pathology: A > 20 years, B ≤ 20 to > 10 years, C ≤ 10 to > 5 years and D ≤ 5 years was compared, analyzing only images and blinded of clinical data of the patients, to issue a specific diagnosis with free writing. RESULTS: Prevalence of malignant masses 17.2% (15/87). The level of confidence in the examiners was considered according to the lack of diagnostic response: high (<6%) with experience of more than 10 years and moderate to low ≤ 10 years. The examiners with more than 5 years always showed likelihood ratio positive greater than 10, diagnostic accuracy greater than 90% and diagnostic Odds ratio greater than 46, not so for the examiner with less experience time who presented results with little clinical utility. The change in specific probability from pre-test to post-test improved consistently with years of experience. CONCLUSION: More than 10 years of experience with special dedication to advanced gynecological ultrasound are probably needed for a desired specific diagnostic performance coupled with high confidence in adnexal mass ultrasound.

Massas anexiais: descrição e interpretação ultrassonográfica por IOTA / Adnexal masses: IOTA ultrasound description and interpretation

Este artigo visa apresentar ao médico ginecologista (clínico e/ou cirurgião), de forma prática, a normatização internacional da prática da ultrassonografia ginecológica para avaliação das massas anexiais. Desde 2000, o grupo europeu IOTA (International Ovarian Tumor Analysis) vem colhendo dados e difundindo conhecimento nessa área, de forma a padronizar o exame ultrassonográfico. Quais descritores ecográficos devem ser valorizados, como devem ser descritos e medidos, como aplicar o estudo Doppler e como interpretar a presença ou ausência desses descritores ecográficos na diferenciação das massas anexiais benignas de malignas, inferindo o risco de malignidade das massas, tudo isso está bem definido.(AU)

The main aim of this article is to present to gynecologists (clinicians and/or surgeons) the practical international gynecological ultrasound standardization for adnexal masses assessment. Since 2000, European group IOTA (International Ovarian Tumor Analysis) has been collecting data and disseminating knowledge in order to standardize ultrasound examination. It is already well-defined which ultrasound features should be described and measured, how power/color Doppler have to be applied and how the presence or absence of these features can differentiate benign from malign masses, inferring tumors malignancy risk.(AU)

Advances of Artificial Intelligence Application in Medical Imaging of Ovarian Cancers / 中国医学科学杂志(英文版)

Ovarian cancer is one of the three most common gynecological cancers in the world, and is regarded as a priority in terms of women's cancer. In the past few years, many researchers have attempted to develop and apply artificial intelligence (AI) techniques to multiple clinical scenarios of ovarian cancer, especially in the field of medical imaging. AI-assisted imaging studies have involved computer tomography (CT), ultrasonography (US), and magnetic resonance imaging (MRI). In this review, we perform a literature search on the published studies that using AI techniques in the medical care of ovarian cancer, and bring up the advances in terms of four clinical aspects, including medical diagnosis, pathological classification, targeted biopsy guidance, and prognosis prediction. Meanwhile, current status and existing issues of the researches on AI application in ovarian cancer are discussed.

Cáncer de Ovario: Tamizaje y diagnóstico imagenológico / Ovarian Cancer: Screening and imaging diagnosis

Resumen El cáncer de ovario se ha caracterizado por ser la neoplasia ginecológica de peor pronóstico. Lo anterior es consecuencia del curso silente de la enfermedad que ocasiona que la mayoría de las veces el diagnóstico se realice en etapas avanzadas. La información recolectada señala que los avances terapéuticos no han demostrado ser efectivos en mejorar la sobrevida de las pacientes con cáncer de ovario, lo cual orienta a la búsqueda constante de un método (o conjunto de éstos), que permita llevar a cabo el tamizaje y la detección temprana de dicha patología. Sin embargo, debido a que actualmente no se ha logrado identificar un método que sea costo-efectivo para el tamizaje, el mismo no se aplica a la población general y se reserva para casos específicos, como mujeres con antecedentes familiares de la enfermedad o que presentan síndromes hereditarios. Esta revisión incluye además información sobre las diferentes técnicas de imagen utilizadas tanto para el estudio y caracterización de masas anexiales, como para el estadiaje y pronóstico del cáncer de ovario. De las técnicas estudiadas, el ultrasonido (US) demostró ser la mejor opción para el abordaje inicial de masas anexiales; sin embargo, a la hora de realizar el estadiaje resultó ser inferior a la tomografía computarizada (TC) y la resonancia magnética (RM).

Abstract Ovarian cancer is the gynecological malignancy with the worst prognosis. Due to the silent course of the disease the diagnosis is made mainly in advanced stages. The literature reviewed showed that the therapeutic advances have not shown any major improvement in patient´s survival with ovarian cancer, therefore there is a constant research for a technique (or a set of them) that allows a proper screening and early detection of the disease. However, a cost effective method has not been found for screening, therefore it is not recommended for general population and it is reserved for specific cases, such as women with family history of ovarian cancer and with hereditary syndromes. This review also includes information about the different imaging techniques available not only for the study and characterization of neoplasms, but also for staging and prognosis of ovarian cancer. The ultrasound proved to be the best option for the initial approach of adnexal masses, however it has shown to be inferior for staging than CT-Scan and MRI.

GIRADS: método de clasificación de masas anexiales, revisión sistemática y metanálisis. 10 años de experiencia / GIRADS: adnexal masses classification method, systematic review and metanalysis. 10 years of experience

OBJETIVO: evaluar la experiencia en la utilización del método GIRADS para clasificar masas anexiales a diez años de su primera publicación. MÉTODO: Se realizó búsqueda de estudios que utilizan el sistema GIRADS: Medline (Pubmed), Google Scholar y Web of Science, desde enero de 2009 hasta diciembre de 2019. Se calculó la sensibilidad y especificidad agrupada, Likelihood ratio (LR) (+) y LR (-) y Odds ratio de diagnóstico (DOR). La calidad de los estudios se evaluó con QUADAS-2. RESULTADOS: Se identificaron 15 estudios y se incluyeron 13 de ellos con 4473 masas, 878 de ellas malignas. La prevalencia media de malignidad ovárica fue del 23 % y la agrupada de 19.6%. El riesgo de sesgo fue alto en cuatro estudios para el dominio "selección de pacientes" y fue bajo en todos en todos los estudios para los dominios "prueba índice" y "prueba de referencia". La sensibilidad, especificidad, LR (+) y LR (-) agrupadas y el DOR del sistema GIRADS para clasificar las masas anexiales fueron: 96.8% (intervalo de confianza [IC] 95% = 94% - 98%), 91.2 % (IC 95 % = 85% - 94%), 11.0 (IC 95% = 6.9 -13.4) y 0.035 (IC 95% = 0.02- 0.09), y 209 (IC 95% = 99-444), respectivamente. La heterogeneidad fue alta para la sensibilidad y especificidad. De acuerdo a la metaregresión, la heterogeneidad entre los estudios se explica por la prevalencia de malignidad, múltiples observadores y la ausencia de diagnóstico histopatológico para todos los casos incluidos en un determinado estudio. CONCLUSIÓN: el sistema GIRADS tiene un buen rendimiento diagnóstico para clasificar masas anexiales.

OBJECTIVE: to evaluate the experience of using GIRADS method to classify adnexal masses ten years after its publication. METHOD: A search was carried out for studies reporting on the use of the GIRADS system in the Medline (Pubmed), Google Scholar and Web of Science databases, from January 2009 to December 2019. Pooled sensitivity and specificity, Likelihood ratio (LR) (+) and LR (-) and Diagnostic Odds ratio (DOR) were calculated. The quality of the studies was assessed by QUADAS-2. RESULTS: 15 studies were identified, and 13 of them were included with 4473 masses, of which 878 were malignant. The mean prevalence of ovarian malignancy was 23% and the prevalence pooled. of 19.6%. The risk of bias was high in four studies for the domain 'patient selection' and low for all studies for the domains 'index test' and 'reference test'. The sensitivity, specificity, pooled LR (+) and LR (-) and the DOR of the GIRADS system to classify adnexal masses were 96.8% (95% confidence interval [CI] = 94% -98%), 91.2 % (95% CI = 85% -94%), 11.0 (95% CI = 6.9-13.4) and 0.035 (95% CI = 0.02-0.09), and 209 (95% CI = 99-444), respectively. Heterogeneity was high for both sensitivity and specificity. According to meta-regression, this heterogeneity was explained by the prevalence of malignancy, the use of multiple observers, and the absence of histopathological diagnosis for all cases included in a given study. CONCLUSION: the GIRADS system has a good diagnostic performance to classify adnexal masses.

Intraoperative ultrasound leads to conservative management of benign ovarian tumors: A retrospective, single-center study / Ultrassom intraoperatório leva ao manejo conservador de tumores ovarianos benignos: Um estudo retrospectivo e monoinstitucional

Abstract Objective To evaluate whether the use of intraoperative ultrasound leads to more conservative surgeries for benign ovarian tumors. Methods Women who underwent surgery between 2007 and 2017 for benign ovarian tumors were retrospectively analyzed. The women were classified into two groups: those who underwent intraoperative ultrasound (group A) and those who did not (group B). In group A, minimally-invasive surgery was performed for most patients (a specific laparoscopic ultrasound probe was used), and four patients were submitted to laparotomy (a linear ultrasound probe was used). The primary endpoint was ovarian sparing surgery (oophoroplasty). Results Among the 82 cases identified, only 36 met the inclusion criteria for the present study. Out of these cases, 25 underwent intraoperative ultrasound, and 11 did not. There were no significant differences in arterial hypertension, diabetes, smoking history, and body mass index for the two groups (p=0.450). Tumor diameter was also similar for both groups, ranging from 1 cm to 11 cm in group A and from 1.3 cm to 10 cm in group B (p=0.594). Tumor histology confirmed mature teratomas for all of the cases in group B and for 68.0% of the cases in group A. When the intraoperative ultrasound was performed, a more conservative surgery was performed (p<0.001). Conclusion The use of intraoperative ultrasound resulted in more conservative surgeries for the resection of benign ovarian tumors at our center.

Resumo Objetivo Avaliar se o uso do ultrassom intraoperatório leva a cirurgias mais conservadoras para tumores ovarianos benignos. Métodos Mulheres que foram submetidas a cirurgia entre 2007 e 2017 por tumores ovarianos benignos foram analisadas retrospectivamente. As mulheres foram classificadas em dois grupos: aquelas que foram submetidas ao ultrassom intraoperatório (grupo A), e aquelas que não o foram (grupo B). No grupo A, foi realizada cirurgia minimamente invasiva na maioria das pacientes (foi usada sonda ultrassonográfica laparoscópica específica), e quatro pacientes foram submetidas a laparotomia (foi usada sonda ultrassonográfica linear). O desfecho primário foi a cirurgia preservadora do ovário (ooforoplastia). Resultados Entre os 82 casos identificados, somente 36 atenderam aos critérios de inclusão para este estudo. Destes, 25 pacientes foram submetidas ao ultrassom intraoperatório, e 11 não o foram. Não houve diferenças significantes em relação à pressão arterial, diabetes, tabagismo e índice de massa corporal entre os dois grupos (p=0.450). O diâmetro do tumor também foi similar entre os dois grupos, variando de 1cm a 11cm no grupo A, e de 1,3cma 10cm no grupo B (p=0.594). A histologia dos tumores confirmou teratoma maduro para todos os casos do grupo B, e para 68,0% dos casos do grupo A. Mais cirurgias conservadoras foram realizadas quando o ultrassom intraoperatório foi realizado (p<0.001). Conclusão O uso do ultrassom intraoperatório resultou em mais cirurgias conservadoras na ressecção de tumores benignos do ovário em nossa instituição.

Rare case of sarcomatoid squamous cell carcinoma arising in an ovarian mature teratoma / Caso raro de carcinoma espinocelular sarcomatoide que surge em um teratoma ovariano maduro

Abstract Although mature cystic teratoma (MCT) is benign, malignant transformation (MT) occurs in ~ 1% to 2% of all cases, and usually consists of squamous cell carcinoma (SCC), which accounts for ~ 80% of the cases. Spindle-cell (sarcomatoid) carcinoma (SCSC) is an uncommon type of SCC, comprising up to 3% of all cases. The lack of characteristic symptoms and specific imaging findings may lead to preoperative misdiagnosis. Moreover, the clinicopathologic characteristics, the treatment, the prognostic factors and the mechanism of MT have not yet been well understood due to the rarity of such tumors, especially in women of reproductive age. The authors present a case of a 34- year-old patient with 14 weeks of gestation who was diagnosed with an adnexal mass suggestive of ovarian teratoma. A laparoscopy salpingo-oophorectomy was performed after 6 months of delivery, and the histological exam revealed a sarcomatoid SCC in the MCT.

Resumo Embora o teratoma cístico maduro (MCT) seja benigno, a transformação maligna (MT) ocorre em cerca de 1% a 2% dos casos, e geralmente apresenta-se sob a forma de carcinoma espinocelular (CEC), responsável por cerca de 80% dos casos. O carcinoma (sarcomatoide) de células fusiformes (CSCF) é um tipo incomum de CEC, compreendendo até 3% de todos os casos. A falta de sintomas característicos e achados imagiológicos específicos pode levar a erros diagnósticos pré-operatórios. Além disso, as características clinico-patológicas, o tratamento, os fatores prognósticos e o mecanismo da MT ainda não são bem compreendidos devido à raridade de tais tumores, principalmente em mulheres em idade reprodutiva. Os autores apresentam um caso de uma paciente de 34 anos com 14 semanas de gestação que foi diagnosticada comumamassa anexial sugestiva de teratoma do ovário. A anexectomia laparoscópica foi realizada após 6 meses do parto, e o exame histológico revelou um CEC sarcomatoide tendo como origem um MCT.

Combination of GI-RADS and 3D-CEUS for differential diagnosis of ovarian masses

SUMMARY OBJECTIVE The purpose of this study is to evaluate the efficacy of the combination of gynecologic imaging reporting and data system (GI-RADS) ultrasonographic stratification and three-dimensional contrast-enhanced ultrasonography (3D-CEUS) in order to distinguish malignant from benign ovarian masses. METHODS In this study, 102 patients with ovarian masses were examined by both two-dimensional ultrasound(2D-US) and 3D-CEUS. Sonographic features of ovarian masses obtained from 3D-CEUS were analyzed and compared with 2D-US. All patients with ovarian masses were confirmed by operational pathology or long-term follow-up results. RESULTS (1)The Chi-square test and multiple Logistic regression analysis confirmed that there were only eight independent predictors of malignant masses, including thick septa (≥3mm), thick papillary projections(≥7mm), solid areas, presence of ascites, central vascularization, contrast enhancement, distribution of contrast agent, and vascular characteristics of the solid part and their odds ratios which were 5.52, 5.39, 4.94, 4.34, 5.92, 7.44, 6.09, and 7.67, respectively (P<0.05). (2)These eight signs were used to combine the GI-RADS with 3D-CEUS scoring system in which the corresponding value of the area under the curve (AUC) was 0.969, which was superior to using GI-RADS lonely (Z-value=1.64, P<0.025). Using 4 points as the cut-off, the scoring system showed the performance was clearly better than using GI-RADS alone (P<0.05). (3) The Kappa value was 0.872 for two different clinicians with equal experience. CONCLUSIONS The combination of GI-RADS and 3D-CEUS scoring system would be a more effective method to distinguish malignant from benign ovarian masses.

RESUMO OBJETIVO O objetivo deste estudo é avaliar a eficácia da combinação da estratificação por ultrassonografia usando o Sistema de Relatórios e Dados de Imagem Ginecológica (GI-RADS) e ultrassonografia 3D com contraste (3D-CEUS) para diferenciar massas ovarianas benignas de malignas. METODOLOGIA Neste estudo, 102 pacientes com massas ovarianas foram examinadas usando ultrassonografia bidimensional (2D-US) e 3D-CEUS. As características ultrassonográficas das massas ovarianas obtidas com 3D-CEUS foram analisadas e comparadas com de 2D-US. Todos os pacientes com massas ovarianas tiveram o diagnóstico confirmado pelos resultados de patologia cirúrgica ou acompanhamento de longo prazo. RESULTADOS (1) O teste qui-quadrado e a regressão logística múltipla confirmaram a existência de apenas oito preditores independentes de massas malignas, incluindo septos espessos (≥3mm), projeções papilares espessas (≥7mm), áreas sólidas, presença de ascite, vascularização central, aumento de contraste, distribuição do agente de contraste e características vasculares da parte sólida e suas razões de possibilidades (OR), que foram 5,52, 5,39, 4,94, 4,34, 5,92, 7,44, 6,09 e 7.67, respectivamente (P< 0,05). (2) Esses oito preditores foram utilizados para combinar o GI-RADS com o sistema de escores da 3D-CEUS, para o qual o valor correspondente da área sob a curva (AUC) foi de 0,969, superior ao uso exclusivo do GI-RADS (valor de Z = 1,64, P < 0,025). Usando 4 pontos como corte, o sistema de escores mostrou que o desempenho foi muito melhor do que com o uso exclusivo do GI-RADS (P < 0,05). (3) O valor de Kappa foi 0,872, obtido por dois médicos diferentes com igual experiência. CONCLUSÃO A combinação do GI-RADS e do sistema de pontuação da 3D-CEUS é um método mais eficaz para distinguir massas ovarianas benignas de malignas.

Relapsed ovarian cancer - diagnosis using 18F-FDG PET/CT; 4

The Guidelines Project, an initiative of the Brazilian Medical Association, aims to combine information from the medical field in order to standardize procedures to assist the reasoning and decision-making of doctors. The information provided through this project must be assessed and criticized by the physician responsible for the conduct that will be adopted, depending on the conditions and the clinical status of each patient.

Estruma ovárico asociado con enfermedad de graves / Struma ovarii associated with Graves' disease

El hipertiroidismo se define como la producción excesiva de hormonas tiroideas a partir de tejido tiroideo maduro eutópico o ectópico. La prevalencia general de hipertiroidismo es 1.2%, y la causa más frecuente es la enfermedad de Graves. El estruma ovárico representa el 1% de todos los tumores ováricos y es una causa infrecuente de hipertiroidismo ectópico. Su comportamiento es benigno en más del 90% de los casos; usualmente asintomáticos, sólo el 8% se presentan con tirotoxicosis, y es infrecuente su asociación con enfermedad de Graves. Se comunica el caso de una paciente con esta infrecuente asociación.

Hyperthyroidism is defined as an excessive production of thyroid hormones by eutopic or ectopic mature thyroid tissue. The overall prevalence of hyperthyroidism is 1.2% and the most common cause is Graves' disease. Struma ovarii represents 1% of all ovarian tumors and is an uncommon cause of ectopic hyperthyroidism. It is benign in >90% of the cases; usually asymptomatic, and only 8% are presented with thyrotoxicosis, being rare its association with Graves' disease. We report the case of a patient with this association.