1997 Volume 36 Issue 2 Pages 216-222
We report a case of solid cystic tumor (SCT) arising in the mesentery in a 62-year-old woman. The tumor was localized in the mesentery and there was no continuity with the pancreas. No other tumor lesions were detected in the pancreas or other organs.
Macroscopically, the tumor was surrounded by a fibrous capsule. The cut surface was partly solid and partly cystic. The fine needle aspiration smears showed a monotonous population of tumor cells forming acinar like arrangements or pseudopapillary structures with fibrovascular stalks as well as single tumor cells. The chromatin was finely granular. One to several nucleoli were present in most cells. The nuclei were round to oval and generally smooth. Histologically, the tumor consisted of solid or papillary growth of eosinophilic neoplastic cells. Mitotic figures were rarely seen. Immunohistochemically, the tumor cells were diffusely positive for alpha-l-antitrypsin (AAT) and neuron-specific enolase (NSE). Ultrastructural examination revealed numerous lysosomes and zymogen-like granules, as well as some neuroendocrine granules, within the tumor cells.
