Fig. 3From: Primary colonic melanoma: a rare entityHematoxylin-eosin (H&E) and immunohistochemical stains of resected specimens. A, B H&E stains showed melanoma cells with epithelioid and spindle morphology. Immunohistochemical stains showed positive for S-100 (C), HMB-45 (D), Vimentin (E), and Melan-A (F). Scale bar=50 or 25μmBack to article page