Epithelioid smoosh muscle tumor of the stomach; a case report

Abstract

A case of epithelioid leiomyomatous tumor of the stomach in 71-year-old male is presented.
The cytological feature of tumor cells showed no cytoplasmic cohesion but the tumor cells have a tendency to be in clusters or in side-by-side arrangement and focal pseudoroset or pseudoglandular arrangement. These tumor cells were suggested malignant leoimyomatous tumor.
Histology of the tumor showed epithelioid leiomyomatous tumor (low grade malignancy), arising the muscular layer of the stomach. Tumor cells were positive for vimentin, actin and myosin, and were negative for desmin, S-100, cytokeratin, EMA and CEA by immunohistochemical stainings.