[Metastatic collision tumour. A case report]. / Tumor metastásico de colisión. Informe de un caso.

BACKGROUND: Collision tumours are extremely rare. They are defined by the presence of two tumours of different histological origin in the same organ. CLINICAL CASE: A 71 year old female with history of a carcinoid tumour removed 20 years ago without any recurrence. The patient was admitted with intestinal occlusion symptoms secondary to a right flank abdominal tumour. An exploratory laparotomy was performed, removing the tumor and applying optimal debulking. The histopathological study reported bilateral ovary adenocarcinoma, as well as metastatic collision tumour of two histological types: well differentiated adenocarcinoma and a mixed malignant mesodermic Mullerian tumor. The patient was treated with adjuvant chemotherapy with poor results (death in 24 months). CONCLUSIONS: The presence of collision tumours is extremely rare. There are no statistics or specific treatment reported. Diagnosis is made with histopathology. At the moment, no similiar cases have been reported.

Carcinossarcoma uterino: relato de um caso com invasão da bexiga, mimetizando mullerianose com transformação maligna / Carcinosarcoma of the uterus: report of a case with invasion of the urinary bladder, resembling mullerianosis with malignant transformation

Introdução: Os carcinossarcomas uterinos são neoplasias infrequentes, correspondendo a apenas 3-9 por cento de todas as neoplasias ginecológicas, representam 48 por cento de todos os sarcomas, e possuem incidência de 8,2 por 1 milhão mulheres/ano. As principais manifestações clínicas são o sangramento vaginal anormal em idade pós-menopausa e dor abdominal. Caracterizam-se morfologicamente por elementos epiteliais e estromais. Podem eventualmente invadir estruturas adjacentes, inclusive a bexiga urinária. Relato do caso: Apresentamos um caso de carcinossarcoma uterino com invasão de bexiga mimetizando mullerianose com transformação maligna. A paciente do sexo feminino de 69 anos apresentava hematuria macroscópica como queixa única. Durante a investigação diagnóstica, após cistoscopia com exame anatomopatológico, foi sugerida a hipótese de mullerianose com transformação benigna. A paciente foientão encaminhada para ressecção cirúrgica da neoplasia. Durante o procedimento cirúrgico, notou-se a existência deuma massa tumoral uterina que invadia a bexiga urinária, e, após análise anatomopatológica, mostrou tratar-se de umcarcinossarcoma uterino com invasão vesical. Conclusão: Manifestações incomuns em doenças com grande potencialde malignidade, além de retardar o processo diagnóstico, interferem diretamente no prognóstico do paciente.

Tumores müllerianos mixtos de cuello uterino / Mullerian mixed tumors of the uterine cervix

Objetivo: Presentar 3 casos clínicos de tumores müllerianos mixtos de cuello uterino más revisión de la literatura. Método: Análisis retrospectivo de fichas clínicas desde noviembre de 1997 hasta enero de 2005 y revisión de las placas histológicas. Resultados: El rango de edad de las pacientes fue de 36 a 56 años (promedio: 48,3 años). El principal motivo de consulta fue la genitorragia. Al examen clínico presentaban un cuello uterino tumoral de gran volumen (5 a 7 cm). En dos pacientes se identificó un carcinosarcoma, en la otra paciente se diagnosticó un adenosarcoma. Al momento del diagnóstico no presentaban enfermedad extrapelviana evidente. Se realizó histerectomía radical y radioterapia pelviana más braquiterapia postoperatoria en todas ellas. Dos pacientes fallecen con enfermedad extrapelviana a los 11 y 20 meses de seguimiento. La otra paciente esta libre de enfermedad a los 48 meses de seguimiento. Conclusión: Los tumores müllerianos mixtos de cuello uterino son raros, de mal pronóstico cuyo tratamiento principal es la cirugía radical con radioterapia adyuvante en caso de enfermedad localmente avanzada. En casos confinados al cuello uterino se puede lograr una mayor sobrevida libre de enfermedad.

Objective: 3 clinical cases of mixed müllerian tumors of uterine cervix and a literature review are presented. Method: Retrospective analysis of clinical charts and pathological reports between November 1997 and January 2005. Results: Patients' ages ranged from 36 to 56 years (mean: 48,3 years). Abnormal vaginal bleeding was the most common presenting symptom. Pelvic examination revealed a large cervical mass (5 to 7 cm) in all cases. Two patients presented a carcinosarcoma, the other one an adenosarcoma tumor. At the initial diagnosis there were not evidence of extrapelvic disease. Radical hysterectomy and external beam radiation therapy and brachytherapy was performed in all cases. Two patients died with extrapelvic metasta-ses at 11 and 20 months of follow-up. The other one remains without evidence of recurrence 48 months after her treatment. Conclusion: Cervical mixed müllerian tumors are rare and poor prognosis neoplasms, radical surgery and adjuvant radiation therapy for local bulky disease are the optimal therapy. Long-term survival is possible in cervix confined early stage disease.

Malignant mixed Mullerian tumors.

Malignant mixed Mullerian tumours (MMMTs) are rare neoplasms, highly aggressive and with an extremely poor prognosis, usually arising in elderly postmenopausal women and presenting at an advanced stage. MMMTs derive from the mullerian mesodermus that differentiates in epithelial and stromal elements, both malignant elements. The clinic pathological features of 3 uterine MMMTs are reported here. The patients ranged in age from 25 to 69 years. The initial manifestations were mainly bloody discharge, abdominal pain and increase of the volume of the uterus. Treatment in 2 patients was hysterectomy with double ooforectomy, and resection of the pelvic mass was the treatment in the third case. Adjuvant radio chemotherapy was administrated in 2 of the 3 cases. Follow-up revealed recurrent pelvic tumour in 1 patient at 59 months, and breast metastases at 20 months in the second one. Because of the high incidence of recurrence and poor prognosis of these tumours, they should be studied and managed by a multidisciplinary team composed by surgeons, oncologists, radiotherapists and pathologists.

Aspectos reprodutivos em mulheres com malformações mullerianas: a propósito de um caso de útero didelfo / Reproductive aspects in women with mullerian deffects: one case of didelfo uterus

Objetivo: Relatar caso de mulher portadora de malformação mulleriana, considerando sua vida reprodutora e eventuais complicações. Casuística e Método: Descrever a evolução de mulher portadora de anomalia mullheriana, com base em seus antecedentes obstétrícos e discutir, com essas informações e análise da literatura pertinente, quais as influências...

Malignant mixed Mullerian tumor of the uterine cervix with neuroendocrine differentiation.

Malignant mixed Mullerian tumors (MMMTs) are rare neoplasms. We report the clinical, pathologic, and immunohistochemical features of an MMMT primary of uterine cervix. This lesion was composed of a poorly differentiated epithelial component (cytokeratin positive) and a spindle cell component (vimentin positive) with heterologous (myoblastic) differentiation (focal 1A4 positive). There were also cells with neuroendocrine features that expressed S-100 and chromogranin A. Along with a brief review of this amazing neoplasm, some histogenetic concepts relevant to this case are discussed. To our knowledge this is the first report of a malignant mixed Mullerian tumor of the uterine cervix with neuroendocrine differentiation.

Tumores con rabdomioblastos y neuroblastos / Tumors with rhabdomyoblasts and neuroblasts

Se evalúa uma técnica de impregnación metálica, doble impregnación de Del Río Hortega, para evidenciar rabdomioblastos y neuroblastos, con recomendaciones sobre los tiempos de impregnación para obtener mejores resultados. Las imágenes obtenidas son muy demostrativas, tanto de los elementos embrionarios del mesénquima primitivo desde mioblasto, miotubo a célula acintada rabdomiobástica con estraciones transversales, hasta los elementos neopláticos de esta estripe. Y de los neuroblastos con sus prolongaciones. El material de estudio incluye un Tumor de Wilms renal con rabdomioblastos y neuroblastos, y un Neuroblastoma de cerebelo con componente rabdomioblástico. A estas lesiones se las considera desembrioplasias. Además se estudiaron 2 Rabdomiosarcomas embrionarios botrioides, uno de ellos de presentación inusual en una mujer menopáusica, 2 Tumores müllerianos mixtos de útero y trompa de Falopio, un Rabdomioma de faringe, y 3 embriones humanos de material de aborto entre 5 y 13 semanas. Destacamos la utilidad de la doble impregnación para estudiar rabdomioblastos y neuroblastos. En los Rabdomiosarcomas se pueden ver estructuras y elementos comparables con los de la etapa embrionaria: células raquetoides, acintadas, miotubos, rabdomioblastos. El Tumor de Wilms es un tumor disembrioplásico y está constituido por el blastema renal. En él hemos encontrado rabdomioblastos y neuroblastos. En el Neuroblastoma del cerebelo servamos rabdomioblastos con cierta organicidad (ectomeséquima). Y por último describimos un caso poco frecuente de Ragdomiosarcoma botrioide de cuello uterino en una mujer menopáusica.

[Heterologous adenosarcoma of the Müllerian ducts in adolescence. Presentation of clinical case and review of the literature]. / Adenosarcoma mulleriano heterólogo en la adolescencia. Presentación de un caso clínico y revisión de la literatura.

This is the case of a 16 years old female with an histopathologic diagnosis of mullerian heterologous adenosarcoma, a non-frequent entity in the adolescence. We carried out a bibliographic review about uterine sarcomas, clinic aspect, classification, epidemiology, prognosis and treatment.

Sarcoma de tipo estroma endometrial extracorporales uterinos / Extracorporal uterine endometrial stromal-like sarcomas

Se presentan 3 sarcomas de tipo estroma esdometrial primarios extracorporales uterinos. Uno de ellos ovárico, bilateral, con extenso compromiso y permeaciones vasculares paratubarias parametriales, del epiplón y del tejido periureteral, asociado a endometriosis ovárica y del tejido paraureteral. Los otros dos casos eran lesiones polipoideas localizadas, una en el endocérvix, otra vaginal. Ninguno de estos 2 casos se asoció a endometriosis. Histológicamente los tumores estaban compuestos por células redondeadas, de escaso citoplasma, abundantes vasos pequeños y bajo índice mitótico. Estos hallazgos corresponden a los de sarcomas de tipo estroma endometrial, de bajo grado. Los presente casos enfatizan la multipotencialidad de los órganos müllerianos, no sólo por su capacidad de desarrollar diferentes tumores epiteliales paramesonéfricos, sino también diferentes sarcomas müllerianos