Primary ovarian angiosarcoma: Two case reports and review of literature

Figure 3 Pathological findings of case 1. A: Tumor cells showed spindle-shaped, intercellular slit-like structures, neoplastic proliferation of atypical cells, with enlarged pleomorphic nuclei and prominent nucleoli (hematoxylin and eosin, × 4); B: Expression of cell Ki-67 protein was positive in 30% (× 10); C: Fluorescence in situ hybridization detected c-MYC amplification.