Concise Medical Dictionary by Unknown

Concise Medical Dictionary by Unknown

Author:Unknown
Format: mobi


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keratoacanthoma n.

a firm nodule that appears singly on the skin, grows to 1–2 cm across in about six weeks, and usually disappears gradually during the next few months. Men are affected more often than women, commonly between the ages of 50 and 70. Keratoacanthomas occur mainly on the face; the cause is not known. Spontaneous healing may leave an unsightly scar; therefore treatment by curettage and cautery, or excision, may be required.

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keratocele (descemetocele) n.

outward bulging of the base of a deep ulcer of the cornea. The deep layer of the cornea (Descemet's membrane) is elastic and relatively resistant to perforation; it therefore bulges when the overlying cornea has been destroyed.



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