A skin growth caused by an overproduction of keratin.
Keratoses occur mainly in elderly people.
Seborrhoeic keratoses are harmless growths that occur mainly on the trunk.
The growths range in appearance from flat, dark-brown patches to small, wart-like protrusions.
They do not need treating unless they are unsightly.
Solar keratoses are small, wart-like, red or flesh-coloured growths that appear on exposed parts of the body as a result of overexposure to the sun over many years.
Rarely, they may develop into skin cancer, usually squamous cell carcinoma, and must be surgically removed.
Also known as actinic keratosis; a rough, scaly area on exposed skin caused by chronic solar damage from exposure to sun. The face and backs of the hands are most commonly affected. (See also MELANOMA; PHOTODERMATOSES.) CRYOTHERAPY is e?ective, but prevention by appropriate clothing and sun-blocking creams is a better strategy.
n. a horny overgrowth of the skin. Actinic (or solar) keratoses are red spots with a scaly surface, found in older fair-skinned people who have been chronically overexposed to the sun. They may occasionally become a *squamous cell carcinoma. Seborrhoeic keratoses (also known as seborrhoeic warts) never become malignant. They are superficial yellowish or brown spots, crusty or greasy-looking, occurring especially on the trunk in middle age, that become warty over the years.
an abnormal build-up of *keratin and dead skin cells within the ear canal that can block the canal, cause conductive hearing loss (see deafness), and erode the bone of the ear canal. It is associated with *bronchiectasis and chronic sinusitis.... keratosis obturans
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