Figure 1From: Malignant melanoma arising from a perianal fistula and harbouring a BRAFgene mutation: a case report Photomicrographic images of the fistula melanoma. A) Fistulous tract course with nest of melanocytic cells (Haematoxylin-Eosin staining; magnification 4×). B) Closer view of the melanocytic cell core (H&E; magnification 10×). C) Melanoma cancerous cells, including one undergoing mitosis (H&E; magnification 40×).Back to article page