a tumor from the keratinocytes, characterized by abnormal, imperfect, or premature keratin development. See illustration.
warty dyskeratoma a solitary brownish red nodule with a soft, yellowish, central keratotic plug, most commonly occurring on the face, neck, scalp, or axilla, or in the mouth; histologically it resembles an individual lesion of keratosis follicularis.
a benign solitary tumor of the skin, usually of the scalp, face, or neck, with a central keratotic plug; it appears to arise from a hair follicle, and microscopically resembles a lesion of keratosis follicularis but is larger, with more extensive epithelial downgrowth.
Synonym(s): isolated dyskeratosis follicularis
a dyskeratotic tumor.
benign proliferation of the epithelium seen in dogs; the lesions are wart-like papules with a hyperkeratotic, umbilicated center.