ABSTRACT
RESUMEN El cáncer colorectal es el tercer tipo de neoplasia maligna más frecuentemente diagnosticada para ambos sexos. El adenocarcinoma es el tipo histológico que constituye el 86% de todos los casos de carcinoma colónico; sin embargo, existen otros subtipos menos frecuentes, como el carcinoma adenoescamoso, una neoplasia sumamente rara, pero con peor pronóstico y menor sobrevida. Presentamos el caso de una paciente mujer de 68 años con un tiempo de enfermedad de 2 años, caracterizado por anemia, hematoquezia y dolor abdominal. El estudio colonoscópico reveló la presencia de tumoración a nivel de colon ascendente, el cual luego de la resección quirúrgica y estudios anatomopatológicos, resultó corresponder a un carcinoma adenoescamoso primario colónico.
ABSTRACT Colorectal cancer is the third most frequently diagnosed cancer in both men and women. Adenocarcinoma is the most common pathologic subtype of colon cancer and constitutes 86% of all colon cancers. Nontheless, there are other less frequent sybtyes of colorectal carcinomas, such as adenosquamous carcinoma, an extremely rare form of colon cancer, but with worse prognosis and greater potential of metástasis. We present the case of a 68-year-old female presented with a two-month history of anemia, hematochezia and abdominal pain. The colonoscopic study presented a tumor in the ascending colon, which after surgical resection and pathological studies, turned out to be a primary colonoc adenosquamous carcinoma.
ABSTRACT
ABSTRACT Adenosquamous carcinoma of the pancreas (ASCP) is a rare variant of the pancreatic ductal adenocarcinoma (PDAC). Between 2004 and 2016, four cases of ASCP were resected at our institution; clinicopathological data were collected. All of our patients were males, aged 55-80 years. Three cases were cephalic tumors; and one, pancreatic tail tumor, measuring between 2.3 and 5.5 cm. All had neurovascular invasion and lymphatic metastasis. Two had retroperitoneal positive margins. The overall survival (OS) after surgery was three weeks-42 months. Prognosis of ASCP is dark and OS appears to be more closely related to surgical margins status than to other clinicopathological factors.
RESUMO O carcinoma adenoescamoso pancreático (ASCP) é uma variante rara do adenocarcinoma ductal (PDAC). Entre 2004 e 2016, foram ressecados quatro casos de ASCP em nossa instituição, com registro dos dados clínicos e patológicos. Os pacientes eram homens entre 55 e 80 anos. Três tumores eram cefálicos; e um, caudal, com dimensões variáveis entre 2,3 e 5,5 cm. Todos tinham invasão neurovascular e metástases linfáticas; dois, margens cirúrgicas retroperitoneais positivas. A sobrevida global (SG) pós-cirurgia foi de três semanas a 42 meses. O prognóstico do ASCP é sombrio, com SG aparentemente mais relacionada com o status das margens cirúrgicas do que com outro fator clinicopatológico.
ABSTRACT
El carcinoma adenoescamoso primario de la vesícula biliar es una variante poco conocida e infrecuente de este tipo de neoplasias, cuya etiología y comportamiento siguen constituyendo un enigma. Se trata de una paciente de 45 años de edad con un carcinoma adenoescamoso primario de vesícula biliar; se presenta este caso por ser un reto diagnóstico debido a lo poco que se conoce sobre esta entidad, la cual es considerada más agresiva y de peor pronóstico que el adenocarcinoma en su presentación clásica.
Adenosquamous carcinoma of the gallbladder is a little-known and infrequent variant of carcinoma, and its etiology and behavior are not completely known. In this review we present a patient of 45 years with a primary adenosquamous carcinoma of the gallbladder, a case that is reported for being a diagnostic challenge for an uncommon entity, which is considered more aggressive and of worse prognosis than the adenocarcinoma in its classical presentation.
Subject(s)
Humans , Gallbladder , Carcinoma , Carcinoma, Adenosquamous , Gallbladder NeoplasmsABSTRACT
El tumor de colisión es una variante poco frecuente de tumores del cérvix uterino, originados de las células de reserva de la unión escamocelular y que debe ser diferenciado de los carcinomas adenoescamosos. El objetivo del presente artículo es determinar las características morfológicas de 17 casos de tumor de colisión de cérvix uterino. La edad promedio de presentación fue 48,7 años (rango: 34-87 años). Los 4 casos con metástasis ganglionares correspondieron al componente de adenocarcinoma.
Collision tumor is an uncommon variant of cervical tumors originating from the reserve cells of squamous cell union and must be differentiated from adenosquamous carcinomas. The aim of this paper is to determine the morphological characteristics of 17 cases of collision tumor of uterine cervix, in which it was found that the average age at diagnosis was 48.7 years (range: 34-87 years). In 5 cases lymph node metastases were of the adenocarcinoma component.
Subject(s)
Humans , Adult , Female , Middle Aged , Aged, 80 and over , Adenocarcinoma/pathology , Carcinoma, Squamous Cell/pathology , Neoplasms, Multiple Primary/pathology , Uterine Cervical Neoplasms/pathology , Carcinoma, Adenosquamous/pathology , Diagnosis, Differential , Lymphatic Metastasis , Mixed Tumor, MalignantABSTRACT
El carcinoma adenoescamoso primario de vesícula biliar (CAEVB), es una neoplasia infrecuente cuya etiología y comportamiento biológico no están totalmente aclarados. Describimos un caso de un paciente masculino con un carcinoma adenoescamoso infiltrante primario de vesícula biliar diagnósticado en una colecistectomía por colelitiasis. Morfológicamente se encontró asociado a los elementos glandulares y escamosos malignos, la presencia de displasia de bajo y alto grado del epitelio glandular y metaplasia escamosa entre las zonas glandulares y escamocelulares, que permiten hacer el diagnostico de este tipo de carcinoma. El estudio de inmunohistoquímica mostraba marcadores tanto de diferenciación glandular como escamosa. Por tratarse de una variante infrecuente de Carcinoma de vesícula biliar reportamos este caso por las dificultades que genera su diagnóstico. Nuestras observaciones sugieren que se trata de un adenocarcinoma con áreas de metaplasia escamosa y posterior transformación maligna de los elementos escamosos.
The adeno-squamous gallbladder carcinoma is a frequent neoplasm with blurred etiology and biological course. A case report is presented from a male with an incidental finding of a gallbladder carcinoma diagnosed during a cholecystectomy. Associated to malignant glandular and squamous morphological findings, low grade dysplasia and squamous metaplasia were observed, allowing the final diagnosis. Immunohistochemistry analyses revealed both glandular and squamous differentiation biomarkers. The report of a rare gallbladder carcinoma illustrates difficulties for proper diagnosis. The analysis suggests an adenocarcinoma with squamous metaplasia areas that evolved towardsthe malignant transformation of squamous components.
Subject(s)
Humans , Male , Aged , Carcinoma, Squamous Cell , Gallbladder , Metaplasia/pathology , Neoplasms, Glandular and Epithelial , Colombia , Cholecystectomy/methods , Immunohistochemistry/methodsABSTRACT
Paciente femenina de 26 años de edad, quien es referida en posoperatorio de ooforectomía derecha, cuya biopsia reporta teratoma quístico maligno, patrón epitelial tipo adenoescamoso. Es reintervenida con laparotomía estadificadora donde se evidencia hallazgos de plastrones tumorales en peritoneo pélvico, mesocolon y epiplón, además múltiples adenopatías pre aórticas, ausencia de ovario derecho, y ovario izquierdo con tumor quístico de 6 cm de diámetro, adherido a la trompa ipsilateral y el piso pélvico. La biopsia definitiva reporta adenocarcinoma moderadamente diferenciado con diferenciación escamosa infiltrando ovario izquierdo, pared de la trompa uterina izquierda, parametrios derecho, izquierdo, piso pélvico, peritoneo y epiplón inframesocólico. Recibe quimioterapia adyuvante con esquema de paclitaxel y carboplatino por 4 ciclos. Al mes de terminar el tratamiento adyuvante presenta sangrado genital, evidenciándose lesión en cúpula vaginal cuya biopsia reporta carcinoma epidermoide moderadamente diferenciado. Se planifica tratamiento con doxorrubicina, ifosfamida y mesna combinado con radioterapia externa pélvica y braquiterapia complementaria.
We report the case of 26 year old female patient who is referred after undergoing right oophorectomy. The pathology of the surgical specimen was reported as malignant cystic teratoma with adenosquamous epithelial pattern. Staging laparotomy is performed. The surgical findings were: tumor implants in pelvic peritoneum, mesocolon, omentum. paraortic lymphadenopaties. Left ovary with 6 cm cystic tumor on its surface firmly adhered to the ipsilateral fallopian tube and pelvic wall. Absence of right ovary. Pathology reports moderately differentiated adenocarcinoma with squamous differentiation infiltrates left ovary, left fallopian tube, right and left parametria, pelvic wall and inframesocolic omentum. Adjuvant chemotherapy based on paclitaxel carboplatin for 4 cycles. One month after ending adjuvant treatment refers vaginal bleeding. After detailed gynecologic evaluation, an exophytic lesion on the vaginal vault is found. The biopsy reports moderately differentiated squamous carcinoma. Combined therapy based on chemotherapeutic agents (doxorubicin, iphosphamide and mesna) and external radiotherapy was scheduled.