Tumor de colisión periampular

Abstract

We report the case of a periampullary collision tumor, in which a duodenal-wall carcinoid and an adenocarcinoma of the head of the pancreas coexisted. We describe the case of a 64-year-old man with a recent history of diarrhea, who was diagnosed with obstructive jaundice. A duodeno-pancreatectomy was performed, and the specimen showed two independent neoplasms in the histopathologic study. Solid cords and nests of neuroendocrine cells in the duodenal wall formed the carcinoid tumor, whereas the other neoplasm was made up of a well-differentiated adenocarcinoma of the pancreas. Both were confirmed by immunohistochemical analysis. According to the literature reviewed, this is the sixth reported case of this rare neoplastic association.

Concurrent Occurrence of Tumor in Colon and Small Bowel following Intestinal Obstruction: A Case Report and Review of the Literature

“…In some cases, there is a possibility of existence of some other benign tumor in the other organs. Accordingly the surgeon must check the possibility of other masses in the abdomen [ 9 ]. Studies show neuroendocrine tumors in the rectum and colon are rare [ 10 ].…”

Periampullary Adenocarcinoid: Diagnostic Dilemma

“…[5] The duodenal adenocarcinoids form interesting important group of lesions for several reasons. Their presence especially in periampullary region may cause great confusion as they are mistaken for adenocarcinoma from duodenum, pancreas or extra hepatic biliary tree.…”

Múltiples tumores carcinoides y adenocarcinomas gástricos sincrónicos

“…La coexistencia de este tipo de tumores con adenocarcinomas es un fenómeno muy infrecuente. Puede tratarse de la existencia simultánea de dos tumores independientes (situados o no en la misma área topográfica), en cuyo caso se trataría de un tumor de colisión, lo que es muy infrecuente, o de un tumor mixto o compuesto, que, aunque también es raro, es más frecuente que lo anterior (2,3).…”