Fig. 2
From: Primary angiosarcoma arising in an angiomyolipoma of the kidney: case report and literature review
Angiosarcoma (AS) and angiomyolipoma (AML) in the renal cortex. a. The transitional zones between AS and AML (× 200); b. The well-differentiated areas of AS (× 200); c. The poorly-differentiated areas of AS (× 200); d. Tumorous necrosis in the lesion (× 200); e. Mitotic figures per high-power field (× 400); f (× 100) and g (× 200). AML regions in the lesion; h and i. Atypical cells with the morphological and structural characteristics resembling AS in areas of AML (× 200)