The Rare Malignancy of the Hepatobiliary System : Ampullary Carcinoid Tumor

الملخص EN

Introduction.

Carcinoid tumors are low-grade tumors originating from endoderm and mostly involving the gastrointestinal system.

However; they may be seen in any site within the gastrointestinal system.

Case Presentation.

A 69-year-old female patient.

The results of blood tests were observed to be consistent with obstructive jaundice.

A mass appearance was not encountered on tomographic examination.

Papilla that was tumor-like macroscopically was seen in the second part of the duodenum in diagnostic endoscopy.

Pylorus—preserving pancreaticoduodenectomy surgical procedure was applied.

On pathological examination of the mass, a tumoral mass was detected in ampulla vateri localization, 1.5 × 1 × 0.8 cm in size, which, in immunohistochemical staining, was evaluated as a neuroendocrine tumor.

Also, Metastasis was observed.

Conclusion.

The rarest type of carcinoid tumor is ampullary located carcinoid tumor, and tumor size is not a reliable indicator for tumor aggressivity in ampullary carcinoid tumors.