Papiloma escamoso oral, actualización literaria a propósito de un caso / Oral squamous papilloma, literary update regarding a case

En 1871, el cirujano Johann von Mikulicz Radecki, de la Universidad de Viena en Austria, introdujo por primera vez la descripción del papiloma escamoso; finalmente en 2002, se reclasificó como una familia independiente con un total de 29 genes, de los cuales cinco se asocian al papiloma humano. En 2021, el Centro Internacional de Referencia del Virus del Papiloma Humano del Instituto Karolinska reportó un total de 228 diferentes tipos de VPH (AU)

In 1871, the surgeon Johann von Mikulicz Radecki, from the University of Vienna in Austria, first introduced the description of squamous papilloma; finally, in 2002, it was reclassified as an independent family with a total of 29 genes, of which five are associated. to human papilloma. In 2021, the International Reference Center for Human Papillomavirus at the Karolinska Institute reported a total of 228 different types of HPV (AU)

Clinicopathological analysis of benign mammary ductal cystic papillomatosis with loss of myoepithelial cells / 中华病理学杂志

Objective: To investigate the histopathological and immunohistochemical characteristics of benign apocrine cystic papillary hyperplasia of the breast with loss of myoepithelial cell layer. Methods: The clinical data, histopathological features and immunohistochemical profile of patients with benign apocrine cystic papillary hyperplasia of breast with loss of myoepithelial cell layer from January 2016 to December 2021 were examined, in which six patients were identified. Results: All six patients were female, aged 36-61 years (median 46 years), who presented with a breast mass; three cases were from the left breast and three cases were from the right breast. Microscopic examination of all cases showed breast hyperplasia with apocrine cysts, accompanied by different degrees of micropapillary and papillary hyperplasia of apocrine cells. One case was associated with lobular carcinoma in situ, and one case was associated with apocrine ductal carcinoma in situ with intraductal dissemination in adenosis. Immunohistochemical staining of CK5/6, p63, SMA, SMMHC, Calponin and CD10 showed complete absence of myoepithelial cell layer surrounding ducts in apocrine cystic papillary hyperplasia. Conclusions: The myoepithelial cells of apocrine cystic papillary hyperplasia of the breast may undergo abnormal changes and may even be completely lost. The diagnosis should be comprehensively considered along with cytomorphological and histological features to avoid overdiagnosis.

Synchronous eyelid oncocytoma and conjunctival intraepithelial neoplasia

Oncocytoma of the eyelid is a rare neoplasm. Oncocytoma associated with an ocular surface squamous neoplasm, namely conjunctival intraepithelial neoplasia, is very hard to find in the literature. Herein we report a case of a 53-year-old male who presented with a swelling in the right lower lid over the last 6 years, along with a growth in the conjunctiva of the same eye for the last 2 years and encroaching upon the cornea for the last 4 months. Excision biopsy of the lower lid mass showed histopathological features consistent with oncocytoma. The conjunctival tissue revealed conjunctival intraepithelial neoplasia 3 (severe dysplasia). This case documents a rare synchronous dual ocular neoplasia, a very unlikely coexistence of oncocytoma with conjunctival intraepithelial neoplasia.

Use of methotrexate in an exuberant case of confluent and reticulated papillomatosis of Gougerot and Carteaud in a teenager

Abstract Confluent and reticulated papillomatosis of Gougerot and Carteaud is a rare dermatosis with onset during puberty, more prevalent in females than in males. The pathogenesis is unknown, but some theories suggest either a keratinization or endocrine disorder. The lesions are verrucous, brownish, hyperkeratotic papules or spots that coalesce in a confluent and/or reticulated pattern. This report presents a case with extensive cutaneous involvement associated with acanthosis nigricans and good response to treatment with methotrexate.

Oral squamous papilloma: a view under clinical, fluorescence and histopathological aspects / Papiloma escamoso oral: uma visão sob aspectos clínicos, de fluorescência e histopatológicos

ABSTRACT Oral squamous papilloma is a benign tumor whose pathogenesis has been associated with human papillomavirus infection. Thus, it is noteworthy that human papillomavirus infection is one of the risk factors associated with the development of cervical, anogenital, pharynx, larynx and oral cavity carcinomas. Oral squamous papilloma can affect any region of the oral cavity, and transmission of human papillomavirus can occur by direct contact, sexual intercourse or from mother to child during delivery. The diagnosis is clinical and histopathological, with surgical removal representing the treatment of choice. Recently, widefield optical fluorescence has been used as a complementary examination to the conventional clinical examination in the screening of oral pathological lesions and for the delimitation of surgical margins. We report a case of oral squamous papilloma with its clinical, histopathological features and, in addition, from the perspective of wide field optical fluorescence.

RESUMO O papiloma escamoso oral é um tumor benigno, cuja patogênese tem sido associada à infecção pelo papilomavírus humano. A infecção pelo papilomavírus humano é um dos fatores de risco associado ao desenvolvimento dos carcinomas cervicais, anogenitais, faríngeos, laríngeos e da cavidade oral. O papiloma escamoso oral pode acometer qualquer região da cavidade oral, e a transmissão do papilomavírus humano ocorre por contato direto, relação sexual ou de mãe para filho durante o parto. O diagnóstico é clínico e histopatológico, e a remoção cirúrgica representa o tratamento de escolha. Recentemente, a fluorescência óptica de campo amplo tem sido empregada como exame complementar ao exame clínico convencional, no rastreio de lesões patológicas orais e para delimitação de margens cirúrgicas. Relatamos um caso de papiloma escamoso oral com suas características clínicas e histopatológicas, sob a perspectiva da fluorescência óptica de campo amplo.

Confluent and reticulated papillomatosis subsiding spontaneously after delivery: report of one case / Papilomatosis confluente y reticulada que remite espontáneamente después del parto: informe de un caso

Gougerot and Carteaud confluent and reticulated papillomatosis (CARP) is an uncommon dermatosis characterized by hyperpigmented scaly macules or papillomatous papules coalescing into confluent patches or plaques centrally with a reticular pattern peripherally. We report a 28-year-old woman presenting at 16 weeks of gestation with an itchy rash that was biopsied and turned out to be consistent with CARP. Options for treatment were discussed but the woman refused to take any systemic therapy and used only moisturizers throughout her pregnancy. The rash subsided spontaneously after delivery.

Acrokeratosis verruciformis of Hopf - Case report

Abstract: A 54 year-old woman with a 3-year history of rheumatoid arthritis (RA) consulted us because of weight loss, fever and skin eruption. On physical examination, erythematous plaques with a pseudo-vesicular appearance were seen on the back of both shoulders. Histological examination was consistent with rheumatoid neutrophilic dermatosis (RND). After three days of prednisone treatment, the skin eruption resolved. RND is a rare cutaneous manifestation of seropositive RA, characterized by asymptomatic, symmetrical erythematous plaques with a pseudo-vesicular appearance. Histology characteristically reveals a dense, neutrophilic infiltrate with leucocitoclasis but without other signs of vasculitis. Lesions may resolve spontaneously or with RA treatment. This case illustrates an uncommon skin manifestation of active rheumatoid arthritis.

Apoptosis and expression of argyrophilic nucleolus organizer regions in epithelial neoplasms of the larynx / Apoptose e expressão de regiões argirófilas organizadoras de nucléolos em neoplasias epiteliais da laringe

INTRODUCTION: Occurrence of apoptosis and expression of proliferative markers are powerful tools to establish a prognosis in the follow-up of cancer. OBJECTIVE: To evaluate the growth fraction in papillomas and laryngeal squamous cell carcinomas with three degrees of differentiation through apoptosis and the expression of nucleolus organizer regions. METHODS: Retrospective study from which paraffin material was submitted to microtomy and hematoxylin-eosin and silver staining. Stained slides were used to quantify the apoptotic index and the number of nucleolus organizer regions by morphometry. RESULTS: Apoptosis was significantly more frequent in well differentiated carcinomas and in papillomas, and a higher growth fraction of expressed nucleolus organizer regions and cells that expressed a greater than average number of nucleolus organizer regions were more frequently noted in undifferentiated carcinomas. CONCLUSIONS: Thus, it was possible to verify that a high apoptotic index was associated with a lower chance of tumor differentiation in carcinomas, while a greater number of total nucleolus organizer regions, cells expressing nucleolus organizer regions above average and a higher growth fraction were associated with greater likelihood of abnormal cell proliferation and increased tumor differentiation. .

INTRODUÇÃO: A ocorrência de apoptose e a expressão de marcadores proliferativos são ferramentas poderosas no estabelecimento do prognóstico do câncer. OBJETIVO: Avaliar a fração de crescimento de papilomas e carcinomas laríngeos de células escamosas, com três graus de diferenciação, através da apoptose e expressão de regiões organizadoras de nucléolo. MÉTODO: Estudo retrospectivo, cujo material em blocado em parafina foi submetido à microtomia e coloração em hematoxilina-eosina, e pela prata. As lâminas coradas foram utilizadas para quantificar o índice apoptótico e o número de regiões organizadoras de nucléolo (NORs) através da morfometria. RESULTADOS: A apoptose foi significativamente mais frequente em carcinomas bem diferenciados e em papilomas; enquanto que uma maior fração de crescimento, de NORs expressos e de células que expressaram maior número de NORs, foram mais frequentes nos carcinomas indiferenciados. CONCLUSÕES: Foi possível verificar que o índice apoptótico elevado indica menores chances de diferenciação tumoral nos carcinomas, enquanto que um maior número de NORs totais e células expressando NORs acima da média, e uma maior fração de crescimento, determinam maiores chances de proliferação celular anormal e maior diferenciação tumoral. .

Conocimientos, actitudes y prácticas sobre virus del papiloma humano, cáncer cérvico uterino y prevención / Knowledge, attitudes and practices on human papilloma virus, cervical cancer and prevention

Objetivo: Explorar los conocimientos, actitudes y prácticas ante el cáncer cervicouterino (CCU), el virus del papiloma humano (VPH) y sus formas de prevención entre las mujeres de 25 a 64 años de edad en el Salvador. Métodos: Se llevó a cabo un estudio descriptivo de corte transversal mediante una encuesta poblacional en una muestra probabilística y representativa de 838 mujeres de áreas urbanas y rurales de los departamentos de Santa Ana y Sonsonate. Se aplicó un cuestionario estructurado con 84 preguntas mayoritariamente cerradas o semi-abiertas, este cuestionario fue validado por expertos de la Unión Internacional de Cáncer Control...

Objective: To explore the knowledge, attitudes and practices of Salvadorian women between the ages of 25 and 64 regarding cervical uterine cancer, human papillomavirus (HPV) and their prevention. METHODS: We carried out a cross-sectional descriptive study by conducting a population survey with a probabilistic and representative sample of 838 women in urban and rural areas of the departments of Santa Ana and Sonsonate. We administered a structured survey that was previously validated by experts fron the Union for International Cancer control (IUCC). The questionaire consisted of 84 primarily closed and semi-open questions...

Syndrome In Question

The authors describe a case of Cowden´s syndrome in a female patient with classic cutaneous lesions, plus papillomatous lesions in the gastrointestinal tract and a previous history of thyroid carcinoma. Mucocutaneous lesions occur in 90% of Cowden's syndrome cases and are characterized by facial trichilemmomas, oral mucosal papillomas and benign acral keratoses. Sites of extracutaneous involvement include: the thyroid, gastrointestinal tract, breast and endometrial tissue. There is risk of malignancies in these organs and they need to be monitored with imaging tests. The early diagnosis of the syndrome by a dermatologist through mucocutaneous lesions enables the investigation and diagnosis of extracutaneous involvement. .

Confluent and reticulate papillomatosis of Gougerot-Carteaud and obesity: dermoscopic findings

Confluent and reticulated papillomatosis of Gougerot and Carteaud is a dermatosis that despite showing characteristic clinical signs is often poorly recognized and diagnosed. The authors present a case with extensive skin involvement, discuss its association with obesity and describe dermoscopic findings making the histopathological correlation.

Genital warts: comparing clinical findings to dermatoscopic aspects, in vivo reflectance confocal features and histopathologic exam

Genital warts can be diagnosed through physical examination and confirmed by histopathology. Noninvasive methods are useful for ruling out other diagnoses with no harm to the patient. In this study the clinical findings were compared to dermoscopy, reflectance confocal microscopy (RCM), and to histopathology findings, in order to determine possible patterns that can aid diagnosis of the lesion. It was possible to identify structural changes on reflectance confocal microscopy that are already known by dermoscopy, in addition to cellular changes previously seen only by histopathological examination. This study shows the use of reflectance confocal microscopy in cases of genital warts, providing important information that can be used in further studies.

The Clinical, Radiological, and Bronchoscopic Findings and Outcomes in Patients with Benign Tracheobronchial Tumors

PURPOSE: We evaluated the characteristics of and treatment outcomes in patients with benign tracheobronchial tumors. MATERIALS AND METHODS: We reviewed the records of patients with benign tracheobronchial tumors who underwent bronchoscopic intervention with mechanical removal and Nd: YAG laser cauterization, and evaluated the characteristics and treatment outcomes of 55 patients with hamartomas, leiomyomas, papillomas, typical carcinoids, or schwannomas seen between April 1999 and July 2012. RESULTS: The most common tumors were hamartoma (n=24), leiomyoma (n=16), papilloma (n=7), typical carcinoid (n=5), and schwannoma (n=3). Forty-one patients (75%) had symptoms. On chest computed tomography, 35 patients (64%) had round or ovoid lesions, accompanied by atelectasis (n=26, 47%) or obstructive pneumonia (n=17, 31%). Fatty components (n=9, 16%) and calcifications (n=7, 13%) were observed only in hamartomas, leiomyomas, and typical carcinoids. At bronchoscopy, the typical findings were categorized according to tumor shape, surface, color, and visible vessels. Fifty (91%) patients underwent complete resection. Forty patients (73%) achieved successful bronchoscopic removal defined as complete resection without complications or recurrence. Recurrences occurred in four papillomas, one leiomyoma, and one typical carcinoid. The proportions of tumor types (p=0.029) differed between the successful and unsuccessful removal groups, and a pedunculated base (p<0.001) and no spontaneous bleeding (p=0.037) were more frequent in the successful removal group. CONCLUSION: We described clinical, radiological, and typical bronchoscopic findings in patients with benign tracheobronchial tumors; these findings might help to differentiate such tumors. Bronchoscopic intervention was a useful treatment modality, and tumor type, pedunculated base, and vascularity may influence successful tumor removal.

Teat papillomatosis associated with bovine papillomavirus types 6, 7, 9, and 10 in dairy cattle from Brazil

This study describes the clinical, histopathological, and virological characterization of teat papillomatosis from Brazilian dairy cattle herds. Four types of bovine papillomavirus were identified (BPV6, 7, 9, and 10); one of these (BPV7) is being detected for the first time in Brazilian cattle.

Papilomatosis reticulada y confluente: reporte de un caso y revisión de la literatura / Confluent and reticulated papillomatosis: report of one case and review of the literature

La papilomatosis reticulada y confluente (PRC) es una rara dermatosis de etiología desconocida, que se caracteriza por placas hiperpigmentadas que confluyen en el centro y presentan patrón reticulado en la periferia. Es subdiagnosticada y no tiene tratamiento específico. Se reporta el caso de una paciente mujer de 36 años con papilomatosis reticulada y confluente en zona intermamaria. Se realiza revisión de la literatura.

Confluent and reticulated papillomatosis is a rare dermatosis of unknown etiology, characterized by hyperpigmented plaques that meet in the center and reticulated pattern present in the periphery. Is underdiagnosed and no specific treatment. We report the case of a woman aged 36 with confluent and reticulated papillomaiosis intermammary area. Literature review was performed.

Choroid plexus papilloma in a Rottweiler: computed tomographic, gross morfological and histological features / Papiloma do plexo coroide em um cão da raça Rottweiler: aspectos tomográficos, macroscópicos e histológicos

Among the tumors affecting the choroid plexus in dogs, the papilloma ranks second place in incidence after cell carcinoma tumors. Presumptive diagnosis can be made through imaging methods, such as computed tomography and magnetic resonance images. Definitive diagnosis of plexus choroid tumor is based on histopathological findings. This report presented the tomographic features of the brain in a 6-year-old intact female Rottweiler with choroid plexus papilloma. The computed tomography showed right lateral ventricle enlargement, midline deviation and an enhanced mass into the postcontrast phase. At necropsy, a mass on the floor of the right lateral ventricle was observed, associated with important ventricle dilatation. The histopathological analysis demonstrated the presence of neoplastic cell forms with papillary projections. The computed tomography proved to be an effective tool in the presumptive diagnosis of this kind of cerebral disorder.

Dentre os tumores que afetam o plexo coroide em cães, o papiloma figura como o segundo tipo de maior incidência, antecedido apenas pelo carcinoma. O diagnóstico presuntivo pode ser elaborado por meio de métodos de imagem, como a tomografia computadorizada e a ressonância magnética. O diagnóstico definitivo de tumor do plexo coroide é estabelecido com base nos achados histopatológicos. Relatamos os aspectos tomográficos do crânio em uma fêmea de 6 anos, inteira, da raça Rottweiler, com papiloma do plexo coroide. A tomografia computadorizada revelou dilatação do ventrículo lateral direito, desvio da linha média e a presença de uma massa, que sofreu realce na fase pós-contraste. À necropsia, foi observada uma massa sobre o assoalho do ventrículo lateral direito, associada à importante dilatação ventricular. A análise histopatológica demonstrou a presença de células poligonais neoplásicas, arranjadas em papilas longas. A tomografia computadorizada apresentou-se como uma ferramenta eficaz no diagnóstico presuntivo desse tipo de alteração cerebral.

Papiloma esofágico: descripción de un caso, identificación molecular del virus del papiloma humano y revisión de la literatura / [Esophageal papilloma: case report, molecular identification of human papillomavirus and literature review].

sophageal squamous papilloma is an uncommon, usually asymptomatic, benign tumor of the squamous epithelium consisting of a raised, sessile, small and round (smooth or rough) lesion. The prevalence is between 0.01 and 0.45

of cases, with a male/female ratio of 3:1. The etiology and pathogenesis appear to be a mechanical or chemical irritation of the mucosa in addition to the presence of human papillomavirus (HPV), important agent in the evolution to a squamous carcinoma, especially HPV types 16 and 18. In this paper, we describe a case of esophageal papilloma whose diagnosis involved endoscopic images, pathological studies and detection of viral DNA by polymerase chain reaction. By using molecular techniques (PCR-RFLP) a profile consistent with HPV type 16 has been obtained. The patient underwent polypectomy and currently, after 3 years of diagnosis, he remains asymptomatic. This work is one of the first national reports of a patient with esophageal papilloma in which one of the most frequently HPV genotypes associated with esophageal carcinoma (HPV 16) has been detected.