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DictionarySeeseborrheic keratosisEncyclopediaSeekeratosiskeratosis seborrheica
keratosis [ker″ah-to´sis] any horny growth, such as a wart or callosity.actinic keratosis a sharply outlined wartlike or keratotic growth, which may develop into a cutaneous horn, and may become malignant; it usually occurs in the middle aged or elderly and is due to excessive exposure to the sun. Called also senile or solar keratosis. (See Atlas 3, Part F).keratosis follicula´ris a slowly progressive autosomal dominant disorder of keratinization characterized by pinkish to tan or skin-colored papules on the seborrheic areas of the body that coalesce to form plaques, which may become crusted and secondarily infected; over time, the lesions may become darker and may fuse to form papillomatous and warty malodorous growths. Called also Darier's disease and Darier-White disease.keratosis palma´ris et planta´ris palmoplantar keratoderma.keratosis pharyn´gea horny projections from the tonsils and pharyngeal walls. Called also pharyngokeratosis.keratosis pila´ris hyperkeratosis limited to the hair follicles.keratosis puncta´ta a hereditary hyperkeratosis in which the lesions are localized in multiple points on the palms and soles.seborrheic keratosis (keratosis seborrhe´ica) a benign, noninvasive tumor of epidermal origin, marked by numerous yellow or brown, sharply marginated, oval, raised lesions.senile keratosis (solar keratosis) actinic keratosis.seb·or·rhe·ic ker·a·to·sis , keratosis seborrheicasuperficial, benign, verrucous, often pigmented, greasy lesions consisting of proliferating epidermal cells, resembling basal cells, enclosing horn cysts; they usually occur after the third decade. Synonym(s): basal cell papilloma, seborrheic verrucaseb·or·rhe·ic ker·a·to·sis , keratosis seborrheica (seb'ōr-ē'ik ker'ă-tō'sis, seb-ōr-ē'i-kă) 1. A superficial, benign, verrucous, often pigmented, greasy lesion consisting of proliferating epidermal cells, resembling basal cells, enclosing horn cysts; usually occur after the third decade. 2. Synonym(s): senile keratosis. Synonym(s): seborrhoeic keratosis. seb·or·rhe·ic ker·a·to·sis , keratosis seborrheica (seb'ōr-ē'ik ker'ă-tō'sis, seb-ōr-ē'i-kă) Superficial, benign, verrucous, often pigmented, greasy lesions consisting of proliferating epidermal cells, resembling basal cells, enclosing horn cysts; usually occur after the third decade.
Synonym(s): basal cell papilloma. |