trichilemmoma

trichilemmoma
A benign tumor derived from outer root sheath epithelium of a hair follicle, consisting of cells with pale-staining cytoplasm containing glycogen; multiple trichilemmomas are present on the face in Cowden disease. SYN: tricholemmoma. [trichi- + G. lemma, husk, + -oma, tumor]

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trich·i·lem·mo·ma (trik″ĭ-ləm-oґmə) [trichi- + Gr. lemma rind, husk + -oma] a benign adnexal tumor of the lower outer root sheath of the hair; called also tricholemmoma.

Medical dictionary. 2011.

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