seborrheic keratosis
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Related to seborrheic keratosis: actinic keratosis
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.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
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 verruca
Farlex Partner Medical Dictionary © Farlex 2012
seborrheic keratosis
Senile keratosis Dermatology A benign, often numerous lesion of the face and upper trunk of older adults, which appear as wart-like growths in various colors; SKs may become irritated and itch because of friction from clothes. See Keratosis.McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
seb·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.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
seborrheic keratosis
A benign skin tumor that may be pigmented. It is composed of immature epithelial cells and is quite common in older adults. Its etiology is unknown.
Synonym: wart, seborrheic See: illustrationSymptoms
Keratoid, nevoid, acanthoid, or verrucose types occur in older adults and in those with long-standing dry seborrhea, on the face, scalp, interscapular or sternal regions, and backs of the hands. The yellow, gray, or brown sharply circumscribed lesions are covered with a firmly adherent scale, greasy or velvety on the trunk or scalp but harsh, rough, and dry on the face or hands.
Treatment
Thorough curettage is effective. This leaves a flat surface that becomes covered with normal skin within about 1 week. Pedunculated lesions can be removed surgically. Cautery may produce scarring and should not be used.
See also: keratosis
Medical Dictionary, © 2009 Farlex and Partners
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.
Synonym(s): basal cell papilloma.
Medical Dictionary for the Dental Professions © Farlex 2012