Nov. 27, 2017
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Tumor at higher magnification, showing mild nuclear pleomorphism and moderate-to-abundant cytoplasm (hematoxylin and eosin stain, 200x magnification). A few cells contain blackish-brown pigment. There is no significant increase in mitosis frequency (<1 mitosis per 10 high power fields). (Source: Srirama Jayamma S, Sud S, Buxi T, Madan VS, Goyal A, Dhawan S. Cervical spinal meningeal melanocytoma presenting as intracranial superficial siderosis. Case Rep Radiol 2015;2015:674868. Creative Commons Attribution License.)