Synchronous appendiceal neuroendocrine carcinoma and mucinous cystadenocarcinoma: a case report

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Introduction: Appendiceal tumors with histological features of both carcinoids and adenocarcinomas are very rare. Carcinomas of the appendix are usually mucinous adenocarcinomas with a tendency to produce peritoneal pseudomyxoma and without metastatic spread until late in the disease course. Carcinoid tumors of the appendix are a common incidental finding.

Aim(s): We present a case of a 31-year-old woman with endometriosis who underwent laparoscopy for infertility and laparoscopic appendectomy after pelvic MRI showed fluid in the Douglas recessus and periappendiceal adhesions with mucinous collection.

Materials and methods: Histopathological and immunohistochemical studies were done on obtained specimens. Pre-and postoperative serum chromogranin-A, CA125, and CA19-9 were measured.

Conference: 7th Annual ENETSConcerence (2010)

Presenting Author: Ognjanovic S

Authors: Ognjanovic S, Petakov M, Macut D, Isailovic T, Elezovic V,

Keywords: appendix, neuroendocrine tumor, mucinous cystadenocarcinoma, pseudomyxoma peritonei,