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.
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.... keratosis
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