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

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

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.