melanoacanthoma

melanoacanthoma
A seborrheic keratosis with melanin pigmentation associated with proliferation of intraepidermal melanocytes. [melano- + G. akantha, thorn, + suffix -oma, tumor]

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mel·a·no·ac·an·tho·ma (mel″ə-no-ak″ən-thoґmə) [melano- + acanthoma] a rare, benign neoplasm of the epidermis or oral epithelium, composed of keratinocytes and large dendritic, deeply pigmented melanocytes.

Medical dictionary. 2011.

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