Adenosquamous cancer of the pancreas: A multicenter retrospective study / Cancer adenoescamoso de pancreas. Estudio retrospectivo multicéntrico

Introduction: Adenosquamous cancer of the pancreas (ASCP) is an aggressive, infrequent subtype of pancreatic cancer that combines a glandular and squamous component and is associated with poor survival. Methods: Multicenter retrospective observational study carried out at three Spanish hospitals. The study period was: January 2010–August 2020. A descriptive analysis of the data was performed, as well as an analysis of global and disease-free survival using the Kaplan–Meier statistic. Results: Of a total of 668 pancreatic cancers treated surgically, twelve were ASCP (1.8%). Patient mean age was 69.2±7.4 years. Male/female ratio was 1:1. The main symptom was jaundice (seven patients). Correct preoperative diagnosis was obtained in only two patients. Nine pancreatoduodenectomies and three distal pancreatosplenectomies were performed. 25% had major complications. Mean tumor size was 48.6±19.4mm. Nine patients received adjuvant chemotherapy. Median survival time was 5.9 months, and median disease-free survival was 4.6 months. 90% of patients presented recurrence. Ten of the twelve patients in the study (83.3%) died, with disease progression being the cause in eight. Of the two surviving patients, one is disease-free and the other has liver metastases. Conclusion: ASCP is a very rare pancreatic tumor with aggressive behavior. It is rarely diagnosed preoperatively. The best treatment, if feasible, is surgery followed by the standard chemotherapy regimens for pancreatic adenocarcinoma.(AU)

Introducción: El cáncer adenoescamoso de páncreas (CPAS) es un subtipo de cáncer de páncreas agresivo e infrecuente que combina un componente glandular y escamoso, y presenta baja supervivencia. Métodos: Estudio observacional retrospectivo multicéntrico realizado en tres hospitales españoles. El período de estudio fue: enero 2010 - agosto 2020. Se realizó un análisis descriptivo de los datos, así como un análisis de supervivencia global y libre de enfermedad mediante Kaplan-Meier. Resultados: De un total de 668 cánceres de páncreas tratados quirúrgicamente, doce fueron CPAS (1,8%). La edad media de los pacientes fue de 69,2±7,4 años. La proporción hombre /mujer fue de 1: 1. El síntoma principal fue la ictericia (siete pacientes). Se obtuvo un diagnóstico preoperatorio correcto en solo dos pacientes. Se realizaron nueve duodenopancretectomías cefálicas y tres pancreatoesplenectomías distales. El 25% tuvo complicaciones mayores. El tamaño medio del tumor fue de 48,6±19,4mm. Nueve pacientes recibieron quimioterapia adyuvante. La mediana de supervivencia fue de 5,9 meses y la mediana de supervivencia libre de enfermedad fue de 4,6 meses. El 90% de los pacientes presentó recidiva. Diez de los doce pacientes del estudio (83,3%) fallecieron, y la progresión de la enfermedad fue la causa en ocho. De los dos pacientes que sobrevivieron, uno está libre de enfermedad y el otro tiene metástasis hepáticas. Conclusión:El CPAS es un tumor pancreático muy raro y de comportamiento agresivo. Rara vez se diagnostica antes de la operación. El mejor tratamiento, si es posible, es la cirugía seguida de los regímenes de quimioterapia estándar para el adenocarcinoma de páncreas.(AU)

Adenosquamous cancer of the pancreas: A multicenter retrospective study.

INTRODUCTION: Adenosquamous cancer of the pancreas (ASCP) is an aggressive, infrequent subtype of pancreatic cancer that combines a glandular and squamous component and is associated with poor survival. METHODS: Multicenter retrospective observational study carried out at three Spanish hospitals. The study period was: January 2010-August 2020. A descriptive analysis of the data was performed, as well as an analysis of global and disease-free survival using the Kaplan-Meier statistic. RESULTS: Of a total of 668 pancreatic cancers treated surgically, twelve were ASCP (1.8%). Patient mean age was 69.2±7.4 years. Male/female ratio was 1:1. The main symptom was jaundice (seven patients). Correct preoperative diagnosis was obtained in only two patients. Nine pancreatoduodenectomies and three distal pancreatosplenectomies were performed. 25% had major complications. Mean tumor size was 48.6±19.4mm. Nine patients received adjuvant chemotherapy. Median survival time was 5.9 months, and median disease-free survival was 4.6 months. 90% of patients presented recurrence. Ten of the twelve patients in the study (83.3%) died, with disease progression being the cause in eight. Of the two surviving patients, one is disease-free and the other has liver metastases. CONCLUSION: ASCP is a very rare pancreatic tumor with aggressive behavior. It is rarely diagnosed preoperatively. The best treatment, if feasible, is surgery followed by the standard chemotherapy regimens for pancreatic adenocarcinoma.

Carcinoma adenoescamoso de colon: reporte de caso y revisión de la literatura / Adenosquamous carcinoma of the colon: a case report and review of the literature

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.

Pancreatic adenosquamous carcinoma, a rare entity: report of four cases / Carcinoma adenoescamoso do pâncreas, uma entidade rara: relato de quatro casos

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.

Carcinoma adenoescamoso de la vesícula biliar, una rara variedad histológica / Adenosquamous carcinoma of the gallbladder, a rare histological variant

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.

Tumor de colisión de cérvix uterino: presentación de 17 casos / Collision tumors of the uterine cervix: report of 17 cases

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.

Carcinoma adenoescamoso primario de vesícula biliar: reporte de un nuevo caso y consideraciones sobre su etiología / Primary adenosquamous carcinoma of gallbladder: a case report and considerations on its etiology

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.

Teratoma quístico maduro con transformación maligna: a propósito de un caso / Mature cystic teratoma with malignant transformation: a purpose of a case

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.

Erlotinib in non-small cell lung cancer's second line treatment. Clinical case. / Erlotinib no tratamento de segunda linha do cancro do pulmão de não pequenas células. Caso clínico.

Male, of 58 years, caucasian, construction worker, non smoker, with depressive syndrome, biliary lithiasis, renal cysts, surgery for benign intestinal polyps and relevant familiar history - aunt with lung cancer and mother with colon cancer. He initiated thorax pain and vomitting and made a chest x-ray, showing a right basal lung mass. During the etiologic study, he was submitted to thoracotomy with biopsy, in April 2006 - "fine granulations, spread for all the pulmonary field", allowing the diagnosis - adenosquamous lung carcinoma, stage IV (16/05/2006). He initiated citostatic treatment with vinorelbine-carboplatin in 02/06/2006, with haematological toxicity and later with neurological toxicity. At that time, he passed to second line treatment with erlotinib, that it was initiated in 11/06/2007, without significant secondary effects. Patient developed trigemic nerve pain, in October/2007, which subsequent study disclosed right esfenopetroclival meningioma, treated with radiosurgery. Later he presented cerebral metastization and erlotinib was discontinued in 09/06/2008. He was submitted to neuroradiosurgery. Now is under symptom support care. Rev Port Pneumol 2008; XIV (Supl 3): S79-S82.