senile keratosis


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Related to senile keratosis: seborrheic keratosis, actinic keratosis, Bowen disease

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.

ac·tin·ic ker·a·to·sis

a premalignant warty lesion occurring on the sun-exposed skin of the face or hands in aged light-skinned persons; hyperkeratosis may form a cutaneous horn, and squamous cell carcinoma of low-grade malignancy may develop in a small proportion of untreated patients.

senile keratosis

senile keratosis

(1) Actinic keratosis, see there.
(2) Seborrheic keratosis, see there.

se·nile ker·a·to·sis

(sen'il ker'ă-tō'sis)
Benign flat, raised, or pedunculated lesions, colored yellow to dark brown; more usual on the trunk and increase in incidence after 40 years of age; may be known as basal cell papillomas because of their cells of origin but are not neoplastic and are not related to basal cell carcinomas.
Synonym(s): seborrheic keratosis (2) , keratosis senilis.
[L. senilis, old age, + G. keras, horn, + -osis, condition]

se·nile ker·a·to·sis

(sen'il ker'ă-tō'sis)
Benign flat, raised, or pedunculated lesions, colored yellow to dark brown; more usual on the trunk and increase in incidence after 40 years of age; may be known as basal cell papillomas because of their cells of origin but are not neoplastic.
Synonym(s): seborrheic keratosis (2) .
[L. senilis, old age, + G. keras, horn, + -osis, condition]