Fig. 2From: Primary urethral small cell melanoma with neuroendocrine differentiation: a case reportHistopathological examination of urethral small cell melanoma with neuroendocrine differentiation: Biopsy from the urethral mass showed tumor cells arranged in a solid pattern (a, H&E, ×200). The tumor cells had high nucleocytoplasmic ratio, moderately pleomorphic nuclei with conspicuous nucleoli at places, and melanin granules in the cytoplasm (b, H&E, ×400). Biopsy from the liver lesion also showed a similar tumor. Frequent apoptoses and mitoses were seen (H&E; ×200, c; and ×400, d)Back to article page