melanocytoma

melanocytoma
1. A pigmented tumor of the uveal stroma. 2. Usually benign melanoma of the optic disk, appearing in markedly pigmented individuals as a small deeply pigmented tumor at the edge of the disk, sometimes extending into the retina and choroid; malignant metaplasia is rare. [megalo- + cyto- + G. -oma; tumor]

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me·la·no·cy·to·ma -sī-'tō-mə n, pl -mas also -ma·ta -mət-ə a benign tumor composed of melanocytes

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mel·a·no·cy·to·ma (mel″ə-no″si-toґmə) [melanocyte + -oma] a neoplasm or hamartoma composed of melanocytes.

Medical dictionary. 2011.

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