Figure 2.

Gross and microscopic findings for metastatic leiomyo-sarcoma. A: The section reveals a whitish solid tumor with a lobulated pattern and a yellowish necrotic portion, abutting duodenal wall on the left side, and compressed pancreatic head tissue on the right side; B: Low-power view displaying eosinophilic intersecting fascicles circumscribed by a fibrous capsule (a) and adjacent normal pancreatic tissue (b) (hematoxylin and eosin stain ×40); C: Cellular proliferation of atypical spindle tumor cells is accompanied by nuclear atypia and hyperchromasia (hematoxylin and eosin stain × 200); D: Tumor cells show immunoreactivity for desmin.