1 & 2 Both biopsies show ulcerated mucosal fragments by a hypercellular, poorly differentiated malignant neoplasm infiltrating the gastric tissue in diffuse, solid sheets with extensive necrosis. The tumor comprises medium to large, discohesive cells lacking glandular or nesting architecture. Cytologically, the cells exhibit marked atypia, characterized by irregular hyperchromatic nuclei, and scant to moderate cytoplasm. Frequent mitotic figures and apoptotic bodies are present. Picture is that of high grade large malignant round cell tumor, recommended for typing by marker study (CD20, CD3, CK & Ki-67).
Epigastric pain. Endoscopy: a large ulcerated infiltrating tumor thickening involving the gastric lesser curvature, starting from proximal corpus and extending down to the incisura and multiple ulcerated nodules seen at the duodenal bulb.
Two biopsies were received:
1- Gastric biopsy: soft tissue fragments collectively measured 1.1 cm, totally embedded.
2- Duodenal biopsy: soft tissue fragments collectively measured 0.6 cm, totally embedded.
1&2- Gastric mass and duodenal nodules, endoscopic biopsies: