Figure 3From: Malignant melanoma arising from a perianal fistula and harbouring a BRAFgene mutation: a case report Photomicrographic image of a cross-section of the entire resected fistula piece. This picture of the entire resected piece (H&E; magnification 2×) shows the fistulous tract, the lentiginous melanocytic hyperplasia, and the perianal skin epidermis. Note that the lesion is located in the depth of fistula, not in the perianal epidermis.Back to article page