An extremely rare aggressive neoplasm choriocarcinoma of ovary: a case report

Choriocarcinoma of ovary is an extremely rare neoplasm. Based on its origin it is gestational and non-gestational. Gestational ovarian choriocarcinoma can arise from an ectopic pregnancy or present as a metastasis from a uterine or tubal choriocarcinoma. Its incidence is 1 in 369 million pregnancies whereas non-gestational ovarian choriocarcinoma originates from germ cells and its incidence is<0.6% of ovarian germ cell neoplasm. A case report of a 26-year-old female came to our hospital with complain of pain in her abdomen with an abdominal mass for 20 days with a history of D&C 1 month back for early pregnancy of 8 weeks, here we investigated and diagnosed her as a neoplastic ovarian mass. Then the patient was taken for exploratory laprotomy with TAH with retroperitoneal mass removal with right ovarian mass removal with sigmoidectomy with colostomy with mesenteric LN sampling. Ovarian choriocarcinoma is difficult to diagnose due to its nonspecific presentation. It is commonly diagnosed after surgical management of abdominal mass. The definitive diagnosis can only be confirmed after molecular genetic analysis. Gestational choriocarcinoma is extremely rare aggressive neoplasm with metastatic transformation having poor prognosis.

Presentación inusual de coriocarcinoma metastásico a hígado y pulmón: un reporte de caso / Unusual presentation of metastatic choriocarcinoma to liver and lung: a case report

La enfermedad trofoblástica gestacional (ETG) es un trastorno proliferativo del trofoblasto. Incluye la mola hidatidiforme, el coriocarcinoma, la mola invasiva, el tumor trofoblástico del lecho placentario y el tumor trofoblástico epitelioide. Las últimas cuatro hacen parte de la neoplasia trofoblástica gestacional, que agrupa menos del 1% de todos los tumores ginecológicos. La incidencia de la ETG puede variar, siendo aproximadamente de 1 a 3 de cada 1.000 embarazos en América del Norte y Europa. El coriocarcinoma es la forma más agresiva por su rápida invasión vascular y compromiso metastásico. Sin embargo, es un tumor muy quimiosensible con una alta tasa de respuestas y posibilidad de curación superior al 90%. Se presenta el caso de una paciente de 40 años quien ingresó al servicio de urgencias por disnea súbita secundaria a tromboembolia pulmonar y posteriormente tras el inicio de anticoagulación presentó hemoperitoneo debido a lesiones hepáticas metastásicas de un coriocarcinoma, además de compromiso metastásico pulmonar. Se presenta este caso por ser una patología poco frecuente, agresiva y con presentaciones inusuales, con el fin de mostrar la importancia de un diagnóstico y tratamiento oportuno.

Gestational trophoblastic disease (GTD) is a condition in which the trophoblast, a layer of cells surrounding the embryo, develops abnormally. GTD includes both pre-malignant and malignant pathologies, such as hydatidiform mole, choriocarcinoma, invasive mole, placental site trophoblastic tumor, and epithelioid trophoblastic tumor. Although GTD is rare, it affects about 1 to 3 out of every 1,000 pregnancies in North America and Europe. Choriocarcinoma is the most aggressive form of GTD, as it can quickly invade blood vessels and metastasize to other parts of the body. However, it is highly responsive to chemotherapy, with a cure rate of over 90%. In this case, a 40-year-old patient presented to the emergency department with sudden dyspnea due to pulmonary embolism. After starting anticoagulation therapy, she developed hemoperitoneum due to the spread of choriocarcinoma to her liver, as well as pulmonary metastases. This case is noteworthy because of its unusual presentation and aggressive nature, underscoring the importance of early diagnosis and treatment.

Caracterización de enfermedad trofoblástica gestacional en el Hospital de Talca, 2013-2022 / Characterization of gestational trophoblastic disease at Hospital de Talca, 2013-2022

Introducción: La enfermedad trofoblástica gestacional (ETG) corresponde al espectro de lesiones proliferativas del tejido trofoblástico placentario. Presenta una incidencia mundial variable; en Chile no existen estudios nacionales, por lo que las cifras se deben extrapolar de estudios extranjeros. Objetivo: Caracterizar clínica y epidemiológicamente a las pacientes diagnosticadas con embarazo molar en el periodo 2013-2022 en el Hospital Regional de Talca (HRT). Método: Estudio observacional transversal, se consideró el recuento total de pacientes de la base de datos del Servicio de Onco-Ginecología (n = 100) y la cantidad de embarazos ocurridos entre 2013-2022 en el HRT. Resultados: La edad promedio de presentación fue de 32 años, obteniéndose una incidencia de ETG de 2,1 casos por cada 1.000 embarazos. El 54% de los casos corresponde a mola parcial. Los principales síntomas fueron metrorragia (67%) y dolor abdominal (40%). El principal tratamiento efectuado fue aspiración uterina (92%). En el 48% de los casos se sospechó la ETG con la clínica previo al diagnóstico por biopsia y solo en un 13% únicamente con estudio ecográfico. Conclusiones: Es necesario realizar más investigaciones nacionales que permitan recopilar información actualizada sobre ETG, sobre todo por la variabilidad clínica de la enfermedad, que hace difícil su sospecha diagnóstica.

Introduction: Gestational trophoblastic disease (GTO) corresponds to the spectrum of proliferative lesions of placental trophoblastic tissue. It has a variable global incidence; in Chile there are no national studies so it must be extrapolated from foreign studies. Objective: To clinically and epidemiologically characterize patients diagnosed with molar pregnancy in the period 2013-2022, at the Talca Regional Hospital (HRT). Method: Cross-sectional observational study, the total count of patients from the Onco-Gynecology Service database (n = 100) and the number of pregnancies that occurred between 2013-2022 in the HRT were considered. Results: The average age of presentation was 32 years, obtaining an incidence of GTO of 2.1 cases per 1000 pregnancies; 54% of cases correspond to partial mole. The main symptoms were metrorrhagia (67%) and abdominal pain (40%). The main treatment performed was uterine aspiration (92%). In 48% of the cases, GTO was suspected with clinical symptoms prior to diagnosis by biopsy, and only 13% with an ultrasound study alone. Conclusions: It is necessary to carry out more national research to collect updated information on GTO, especially due to the clinical variability of the disease that makes its diagnostic suspicion difficult.

Fetomaternal hemorrhage with postpartum diagnosis of choriocarcinoma: a case report / 中华围产医学杂志

This paper reports a case of fetomaternal hemorrhage (FMH), which was diagnosed as choriocarcinoma due to late postpartum hemorrhage 20 days after full-term vaginal delivery. The patient fully recovered after chemotherapy combined with surgical treatment, and no disease progression was observed during a one-year follow-up. Choriocarcinoma is one of the risk factors for FMH. Therefore, it is suggested that the placenta should be examined in any suspected cases of FMH. Maternal human chorionic gonadotrophin (hCG) level should also be monitored after delivery for early diagnosis and better prognosis of choriocarcinoma.

Coriocarcinoma gástrico primario: un hallazgo endoscópico infrecuente / Primary gastric choriocarcinoma: an inusual endoscopic finding

RESUMEN Introducción: El coriocarcinoma gástrico primario (CGP) es una neoplasia infrecuente y altamente agresiva que representa menos de 0.1% de todos los cánceres gástricos. Esta neoplasia suele ser frecuentemente confundida con adenocarcinoma gástrico debido a que comparte características clínicas, epidemiológicas e histopatológicas similares, por lo que es importante mantener una alta sospecha de esta entidad. Reporte de caso: Se presenta el caso de una paciente mujer de 64 años que acudió al hospital con síntomas gastrointestinales inespecíficos que incluían anemia, fatiga y llenura precoz. La biopsia endoscópica de la lesión reveló la presencia de CGP en estadio clínico IV que presentó una respuesta parcial luego de 4 ciclos de quimioterapia con el esquema EMA/EP (Etoposido 140 mg, Metotrexate 440 mg, Actinomicina D 0.5 mg/ Etoposido 220 mg, cisplatino 110 mg). Conclusión: Enfatizar el mal pronóstico de los coriocarcinomas extragonadales en contraste con los coriocarcinomas gonadales, los cuales suelen tener un mejor pronóstico.

ABSTRACT Introduction: Primary gastric choriocarcinoma (PGC) is a rare and highly aggressive neoplasm that represents less than 0.1% of all gastric cancers. This neoplasm is often confused with gastric adenocarcinoma because it shares clinical, epidemiological and histopathological characteristics, so it is important to maintain a high suspicion of this entity. Case of report: A case of a 64-year-old woman who came to the hospital with non-specific gastrointestinal symptoms that arose anemia, fatigue and early fullness is presented. The endoscopic biopsy of the lesion revealed the presence of PGC in clinical stage IV that presented a partial response after 4 cycles of chemotherapy with the EMA/EP regimen (Etoposide 140 mg, Methotrexate 440 mg, Actinomycin D 0.5 mg/ Etoposide 220 mg, cisplatin 110 mg). Conclusion: To emphasize the poor prognosis of extragonadal choriocarcinomas in contrast to gonadal choriocarcinomas, which usually have a better prognosis.

Two Unusual Presentations of Gestational Trophoblastic Neoplasia: Cutaneous Metastasis and a Large Solitary Lung Lesion

Gestational trophoblastic tumors, an uncommon group of pregnancy-related neoplasms, should be considered in any premenopausal patient presenting with metastatic disease from an unknown primary. A raised hCG and exclusion of pregnancy are often the only requirement in this situation. Although a potentially curable condition, a late diagnosis and the extent of the metastatic disease often determine the prognosis. Here we describe two young women with metastatic GTN, the first presenting with a very unusual finger metastasis and the second with a rare large solitary lung lesion with brain metastasis.

Treatment outcome of gestational trophoblastic neoplasia patients in Egypt

Background: Gestational trophoblastic neoplasia (GTN) are a spectrum of tumors that develop from placental tissue. We aimed to evaluate the management and treatment outcome of GTN. Methods: Patients diagnosed with GTN presented to Kasr Alainy Center of Clinical Oncology between 2008 and 2017 were included in this study. Patients were assigned to low or high-risk according to the World Health Organization (WHO) scoring system. All data were tabulated and statistically studied by descriptive analysis; comparison between the two groups was done using student t-test for continuous data and Chi-square test for categorical data. Results: A total of 111 patients were studied; the majority of them had WHO low-risk score. In low-risk group, the overall response rate to methotrexate-folinic acid (MTX- FA) or actinomycin D (ActD) was 48.5%, comparable response rate observed between MTX and ActD was 48.2% vs 50%, respectively. Those who received MTX-FA 8-day regimen had higher response rate compared to a weekly schedule, however, no statistical significant difference was observed (51.6% vs 44.4%, respectively, P = 0.586), all low-risk patients who failed MTX or ActD achieved complete remission (CR) with subsequent chemotherapy. Patients with WHO score 5–6 had a significantly lower CR rate compared to patients with scores <5, (28% and 60%, respectively; P = 0.01). Five-years overall survival was significantly lower in high-risk than low-risk patients (79.3% vs 100%, respectively, P = <0.001). Conclusion: Low-risk patients have a survival rate of 100% even if they did not respond to first-line chemotherapy, MTX-FA 8-day regimen seems to be more effective than MTX weekly regimen.

Coriocarcinoma primario de estómago. Reporte de un caso / Primary choriocarcinoma of the stomach. A case report

RESUMEN El corioadenocarcinoma gástrico primario (PGC) constituye menos del 1% de todos los cánceres gástricos; es más común en los hombres. Aproximadamente un tercio de los pacientes ya tienen enfermedad metastásica en el momento del diagnóstico. Presentamos el caso de un paciente varón de 70 años, diagnosticado de adenocarcinoma gástrico en antropíloro, al que se le realizó gastrectomía radical distal. El diagnóstico anatomopatológico muestra un adenocarcinoma, con un 85% de diferenciación coriocarcinomatosa, un 10% con áreas de adenocarcinoma tubular y el 5% restante por componente sugestivo de tumor de saco vitelino. Nuestro paciente logró una sobrevida de 5 meses después de la cirugía, durante este tiempo estuvo en seguimiento por medicina oncológica con quimioterapia. Esta enfermedad sigue teniendo un pronóstico sombrío; menor a 6 meses.

ABSTRACT Primary gastric chorioadenocarcinoma (PGC) constitutes less than 1% of all gastric cancers; it is more common in men. Approximately one third of patients already have metastatic disease at the time of diagnosis. We present the case of a 70-yearold male patient, diagnosed as gastric adenocarcinoma in anthropylorus, who underwent radical distal gastrectomy. The pathological diagnosis shows an adenocarcinoma, with 85% choriocarcinomatous differentiation, 10% with areas of tubular adenocarcinoma and the remaining 5% per component suggestive of yolk sac tumor. Our patient achieved a survival of 5 months after surgery, during this time he was followed up by oncology medicine with chemotherapy. This disease continues to have a gloomy prognosis; less than 6 months.

Difficulty in Diagnosing of Renal Choriocarcinoma: Case Report / Dificuldade no diagnóstico do coriocarcinoma renal: relato de caso

ABSTRACT Choriocarcinoma is a rare highly malignant tumor. We report a case of 35-year-old woman, with a history of four months menstrual irregularity and human chorionic gonadotropin persistently positive that presented transvaginal ultrasound normal and the computed tomography scan of the chest showed three nodules and abdominal scan evinced a hypervascularized solid nodular lesion on left kidney. An ultrasound-guided biopsy of left kidney was performed with a pathologic diagnosis of renal choriocarcinoma. After chemotherapy the human chorionic gonadotropin was negative and the patient returned to normal menstrual cicles.

RESUMO O coriocarcinoma é um tumor altamente maligno raro. Relatamos um caso de mulher de 35 anos, com história de irregularidade menstrual de quatro meses e gonadotrofina coriônica humana persistentemente positiva que apresentava ultrassonografia transvaginal normal e a tomografia computadorizada de tórax com três nódulos e a abdominal evidenciava um nodular sólido hipervascularizado lesão no rim esquerdo. Uma biópsia guiada por ultrassom do rim esquerdo foi realizada com diagnóstico patológico de coriocarcinoma renal. Após a quimioterapia, a gonadotrofina coriônica humana foi negativa e a paciente retornou aos ciclos menstruais normais.

Gestational Trophoblastic Diseases - A Clinicopathological Study

The term ‘gestational trophoblastic disease’, includes lesions, some of which are categorized as true neoplasms, and others that are representative of placentas that are malformed. It refers to various lesions that accompany the premalignant type, some of which are hydatidiform moles of the partial or the whole variety. The malignant type of lesions (GTD / GTN), include the following: choriocarcinoma, epithelioid trophoblastic tumour, placental site trophoblastic tumour, and invasive moles. METHODSA total number of thirty-four cases of GTD during the last two years at a tertiary care hospital was studied, relevant data was collected, and histological features studied. RESULTS79.41% of GTDs in the present study were complete mole, 58.82% of GTDs occurred in nullipara, 52.94% cases had GTDs seen in the third decade, 14.70% cases had history of previous GTD, 5.88% cases had history of previous abortion, 2.94% cases had a history of previous ectopic pregnancy, and case with choriocarcinoma had the highest HCG levels. In contrast, case with epithelioid trophoblastic tumour had the least HCG levels. CONCLUSIONSIn this particular study, it was found that most of the GTDs occurred in nulliparous women in their thirties and their occurrence increased with risk factors like a previous history of GTD, abortions, or ectopic pregnancy.

Prevalence of gestational choriocarcinoma in a parous population in ten years

Background: Choriocarcinoma is a rare disease with varying incidence in different parts of the world. Asian, American Indian and Africans are quoted to be at a higher risk. There are no epidemiological data from Middle East and hence authors studied the prevalence of choriocarcinoma in Oman, a Middle East nation with a high parity.Methods: This is a retrospective, descriptive, observational study done at tertiary care hospital; Royal Hospital from Jan 2010 to Dec 2019. Since all women are referred to a single center from all over the country, authors believe all cases are included over ten years.Results: There were 22 patients and the prevalence were 1 in 36966 live births. The main presenting symptom was abnormal uterine bleeding and all were gestational type of choriocarcinoma. Median gravidity was 6 and median parity was 5. Almost 80 % received chemo as their risk scoring was more than 7 and one woman died.Conclusions: The prevalence of choriocarcinoma was much similar to Europe and USA though the median gravidity and parity was high. Clinical features were comparable to the literature and management protocols were as per international recommendations.

Gestational trophoblastic diseases: an observational study at a tertiary care teaching hospital in Jharkhand, India

Background: Gestational Trophoblastic Diseases (GTD) encompass a wide spectrum of proliferative disorders of trophoblast tissue, which hold a good prognosis if diagnosed and treated on time. A close understanding of the disease spectrum is therefore needed to reduce morbidity and mortality.Methods: This is an observational study (both prospective and retrospective analysis) conducted in Rajendra Institute of Medical Sciences, a tertiary care teaching hospital in Ranchi, Jharkhand over a period of 2 years from 1st January 2017 to 31st December 2018.Results: A total of 162 cases of GTD were identified during the study period. Disease spectrum comprised of complete molar pregnancy in 146 (90.12%) and partial molar pregnancy in 7 (4.3%), GTN in 9 out of 162 cases (5.5%). Bleeding per vaginum preceded by amenorrhea was the most common symptom, observed in 95.4% of the cases. Uterine size was more than period of amenorrhea in almost 50% of the cases. Theca lutein cysts were found in 39.8% of the cases, hypertension in 21.5%, hyperthyroidism in 6.5% cases. Overall, there were nine (5.56%) cases of choriocarcinoma and six (3.7%) cases of Invasive mole. Remission rate in GTN was 86.7% with chemotherapy.Conclusions: Women complaining of vaginal bleeding in first half of pregnancy with uterine size more than period of amenorrhea must be evaluated for GTD by ultrasound and serum beta HCG. For cases of molar pregnancies, suction and evacuation remains the treatment of choice but need for regular follow-up and strict compliance to contraception during entire follow up has to be emphasized. Cases of GTN have excellent remission with chemotherapy.

A profile of cases of gestational trophoblastic neoplasia at a tertiary care centre in South India

Background: Gestational trophoblastic disease (GTD) comprises a spectrum of diseases ranging from molar pregnancy to malignant gestational trophoblastic neoplasia (GTN). GTN are highly chemo-sensitive tumours which are treated as per FIGO risk stratification. The rarity of the disease limits the evidence regarding the disease to case series and reports. The objective of this study was to study incidence, baseline characteristics of patients and clinical outcome of GTN patients treated at this centre.Methods: This is a retrospective descriptive study based on medical records of patients of GTD who were registered in department of medical oncology, from January 2015 to December 2018 (4 years). GTN was diagnosed based on serum beta HCG values. Their baseline characteristics, risk score, serum β HCG levels, and treatment regimens were investigated. The incidence of GTD and response to treatment were analysed.Results: Out of 211 GTD patients, 56 developed GTN. The incidence was 3.4 per 10000 deliveries. Low risk cases (n=38) were treated with methotrexate and actinomycin in first line while high risk cases received EMACO and EP followed by EMACO as the first line. A cure rate of 100% for low risk cases and 94.4% (n=17) for high risk cases were recorded. Resistance to MTX was 32.3% while EMACO was resistant in 46.6% as first line. Neutropenia and alopecia were the most common treatment related adverse events. Predictors of resistance to single agent in low risk GTN include higher pre-treatment βHCG values and higher risk scores.Conclusions: GTN exemplifies a rare, highly aggressive but curable malignancy. Serum βHCG is the most reliable diagnostic as well as prognostic marker in management of GTD. EMACO is the preferred regimen for high risk GTN. FIGO staging and risk stratification help in individualizing the treatment to ensure maximum response to therapy thus making GTN a curable malignancy.

Abdomen agudo por coriocarcinoma accidentado. Reporte de un caso clínico / Acute abdomen by accidented coriocarcinoma. Report of a clinical case

Introducción: El coriocarcinoma es una neoplasia gestacional trofoblástica maligna que puede ocurrir después de una mola hidatiforme, embarazo ectópico, aborto e incluso de un embarazo normal. Se trata de una patología poco frecuente que en ocasiones puede pasar desapercibida. Entre las complicaciones clínicas se destaca la metástasis, pero es excepcional la ruptura uterina, siendo esta la que se presenta en el presente caso denotando la importancia del seguimiento. Presentación de caso: Paciente femenina de 49 años que presenta dolor en hipogastrio y vómito, tiene antecedente de mola hidatiforme no controlada. Examen complementario muestra beta-gonadotropina coriónica humana (B-HCG) cualitativa positiva y culdoscentesis positiva. Se realiza tratamiento quirúrgico por laparotomía exploratoria evidenciándose hemoperitoneo más tumor que perfora útero. Se realiza histerectomía abdominal total. Se confirma diagnóstico presuntivo a través de estudio histopatológico que determina coriocarcinoma. Paciente no continua con tratamiento conociéndose posteriormente su deceso. Conclusiones: Se presenta este caso por ser una patología infrecuente con una complicación poco habitual como es la ruptura uterina por coriocarcinoma, al ser considerada una rareza su importancia radica en el diagnóstico oportuno y adecuado seguimiento del caso.

Choriocarcinoma of the colon: A rare case / Philippine Journal of Obstetrics and Gynecology

@#Gestational trophoblastic neoplasia is a group of tumors which includes invasive mole, choriocarcinoma, placental site trophoblastic tumor and epithelioid trophoblastic tumor, all of which develop after a recognized pregnancy. Choriocarcinoma is a highly invasive and metastatic neoplasm which arises in women of reproductive age. Local spread is reported at 15% while distant metastasis at 4%. Of the 4% of cases having distant metastasis, 60% goes to the lungs, 30% to the vagina, and 10% to other sites. Less than 5% of patients with metastatic gestational trophoblastic neoplasia have involvement of the gastrointestinal tract. This is the case of a 47-year-old multigravid patient who came in with an enlarging abdomen 8 years after she had a hydatidiform mole. Work-ups were done which revealed metastases to the colon, liver and lungs. The plan of management was to give multiple agent chemotherapy.

Establishment of orthotopic transplantation model of human choriocarcinoma in nude mice / 解剖学报

Objective Establishment of orthotopic transplantation tumor model of human choriocarcinoma in nude mice. Methods Human choriocarcinoma cell line JAR was cultured and the single cell suspension was subcutaneously injected into five 8-week-old BALB / c nude mice to establish subcutaneous xenograft model. After subcutaneous tumor was formed in nude mice, the tumor tissue was taken under aseptic conditions and cut into 1 mm

Unusual abscess masquerading as poorly differentiated adenocarcinoma of the colon showing characteristics of choriocarcinoma

Extragonadal non-gestational choriocarcinoma (ENC) is an uncommon malignant tumor occasionally found in the gastrointestinal tract. ENC is characterized by a biphasic tumor growth with distinct areas of adenocarcinoma and choriocarcinoma differentiation. Primary choriocarcinoma of the colon is extremely rare, with only 21 cases reported in the literature. Most of the perforation of colorectal cancers occurs in the abdominal cavity, while abdominal wall abscess is rare; the psoas abscess associated with colon carcinoma is even less observed. Herein, we report the case of a 61-year-old female with poorly differentiated adenocarcinoma of the ascending colon and sigmoid, with choriocarcinomatous differentiation, masquerading a psoas abscess formation. Unfortunately, despite the aggressive therapy, the patient's disease rapidly progressed, and she died within 2 months after the diagnosis. The typical morphological pattern, immunohistochemistry, and its correlation with serum β-human chorionic gonadotropin enabled a correct diagnosis.

Mola invasiva en adolescente de 13 años. Aspectos fundamentales del diagnóstico y tratamiento / Invasive mola in 13-year-old girl. Fundamental aspects in diagnosis and treatment

Resumen ANTECEDENTES: La neoplasia gestacional trofoblástica es un tumor raro, derivado de la gestación que procede de un desarrollo anormal del tejido trofoblástico. Incluye cuatro variedades, entre las que se encuentra la mola invasiva y el coriocarcinoma. Puede tener diferentes grados de proliferación; el diagnóstico diferencial es decisivo porque influye directamente en el tratamiento. Las molas premalignas suelen tratarse con legrado uterino, las malignas requieren tratamiento sistémico con mono o poliquimioterapia. CASO CLÍNICO: Paciente de 13 años, hospitalizada debido a un cuadro de vómitos y dolor abdominal. Durante el internamiento se le practicaron estudios complementarios: determinación de la fracción β de la gonadotropina coriónica humana (β-hCG) y tomografía axial computada para plantear el diagnóstico diferencial. El diagnóstico definitivo lo aportó la biopsia obtenida mediante legrado. El tratamiento se basó en la poliquimioterapia. En la actualidad está en remisión completa de la enfermedad. CONCLUSIONES: Resulta imprescindible detectar lo más temprano posible la gestación anómala, entender perfectamente su evolución e importancia de la anticoncepción mientras se trata y la enfermedad desaparece y minimizar la cantidad de pacientes que deben recibir quimioterapia.

Abstract BACKGROUND: Gestational trophoblastic neoplasia is a rare tumor that originates from pregnancy and it develop from anormal proliferation of trophoblastic tissue. It includes four varieties, including invasive mole and choriocarcinoma. They can present different degrees of proliferation, being essential differential diagnosis since it directly influences the treatment. Premalignant moles are usually treated by suction curettage while malignant forms require systemic therapy with mono or polychemotherapy. OBJECTIVE: Report the case, paying special attention to the differential diagnosis and treatment used, analyzing the reasons why polychemotherapy is established and describing the different possible options, based on current scientific evidence. CLINICAL CASE: We present the case of an invasive mola in a 13-year-old patient hospitalized by vomiting and abdominal pain. During this period, complementary techniques such as the determination of the β fraction of the human chorionic gonadotropin (β-hCG) or computed tomography (CT) are required to establish the differential diagnosis. Finally, the definitive diagnosis is provided by the biopsy obtained by curettage. Treatment is instituted with the pattern of polychemotherapy being, currently, with complete remission of the disease. CONCLUSIONS: Thus, it is essential to detect anomalous gestation early, to understand perfectly the evolution of this entity, the importance of contraception during its resolution, and to minimize patients susceptible to chemotherapy.

Hipertiroidismo como clave diagnóstica de un coriocarcinoma avanzado: Una asociación inusual / Hyperthyroidism as a diagnostic key to advanced choriocarcinoma. An unusual association

El hipertiroidismo es una condición relativamente frecuente con múltiples etiologías. La más común es la enfermedad de Graves, seguida del bocio multinodular y el adenoma tóxico. La asociación entre hipertiroidismo y cáncer es infrecuente en la práctica clínica. Presentamos el caso de un varón de 42 años con síntomas de hipertiroidismo de dos meses de evolución. Al examen físico se constató una marcada hepatomegalia de consistencia duro pétrea. El examen de testículos se reveló normal. Se llevó a cabo el diagnóstico de hipertiroidismo a través del dosaje hormonal. Los estudios por imágenes mostraron la presencia de múltiples lesiones sólidas compatibles con metástasis hepáticas. Luego de descartar las causas habituales de hipertiroidismo y las neoplasias primarias de la glándula tiroides, se consideró la posibilidad de mimetismo molecular a través de la producción ectópica de gonadotrofina coriónica humana. Se obtuvieron valores críticamente elevados de esta hormona y en un segundo tiempo se confirmó el diagnóstico histológico de coriocarcinoma a través de una biopsia hepática. Consideramos que el reconocimiento de este mecanismo poco frecuente de hipertiroidismo, puede ser una clave diagnóstica para arribar rápidamente al diagnóstico correcto, particularmente en los tumores extragonadales.

Hyperthyroidism is a relatively frequent condition with multiple causes. The most common cause is Graves' disease; followed by hyperthyroid multinodular goiter and toxic adenoma. Association between hyperthyroidism and cancer is infrequent in daily practice. We present the case of a 42-year-old man who developed severe symptoms of hyperthyroidism within a period of two months. Physical examination revealed significant hepatomegaly. Testicular examination proved normal. Imaging studies showed the presence of multiple hepatic solid lesions consistent with metastases. After discarding the most common causes of hyperthyroidism and primary thyroid gland neoplasm, the possibility of molecular mimicry was considered through human chorionic gonadotrophin production. Critical high values of this hormone were found and choriocarcinoma histological diagnosis was confirmed through a liver biopsy. We consider that the recognition of this rare mechanism of hyperthyroidism may be a clue permitting a faster diagnosis, particularly when extragonadal tumors are present.

Hemorragia intracerebral como primera manifestación de un coriocarcinoma metastásico: reporte de caso / Intracerebral hemorrhage as the first manifestation of a metastatic choriocarcinoma: case report

RESUMEN El coriocarcinoma es una variante muy vascularizada, invasiva y poco común de la enfermedad trofoblástica gestacional. Es potencialmente fatal sin tratamiento adecuado y se caracteriza por la proliferación maligna de tejido trofoblástico con una alta tasa de metástasis. Se presenta el caso de una paciente joven con hemorragia intracerebral como primera manifestación de un coriocarcinoma metástasico. Se describen las características clínicas e imagenológicas y se hace una revisión de la literatura actual, con énfasis en los detalles más relevantes respecto al diagnóstico diferencial de la hemorragia intracerebral de presentación atípica y el tratamiento más apropiado.

SUMMARY Choriocarcinoma is an invasive, highly vascularized, rare gestational trophoblastic disease. It is potentially fatal without proper treatment and is characterized by malignant proliferation of trophoblastic tissue with a high rate of metastases. We present the case of a young patient with intracerebral hemorrhage as the first manifestation of metasta-tic choriocarcinoma. We describe the clinical and imaging characteristics and review current literature, with emphasis on the most relevant details regarding the differential diagnosis of intracerebral hemorrhage atypical presentation and the most appropriate treatment.