Canadian Medical Guide > Diseases > Skin and Connective Tissue Diseases > Skin Diseases > Keratosis Terms and Definitions

Keratosis

Medical Definition:	Any horny growth such as a wart or callus.
Guide Notes:	a horny skin dis
Also Called:	Keratosis Blennorrhagica,Keratoma

Keratosis Categories.

	Callosities - Localized hyperplasia of the horny layer of the epidermis due to pressure or friction. (Dorland, 27th ed)
	Cholesteatoma - A non-neoplastic keratinizing mass with stratified squamous epithelium, frequently occurring in the meninges, central nervous system, bones of the skull, and most commonly in the middle ear and mastoid region.
	Keratosis, Seborrheic - Benign eccrine poromas that present as multiple oval, brown-to-black plaques, located mostly on the chest and back. The age of onset is usually in the fourth or fifth decade.
	Parakeratosis - Persistence of the nuclei of the keratinocytes into the stratum corneum of the skin. This is a normal state only in the epithelium of true mucous membranes in the mouth and vagina. (Dorland, 27th ed)

Keratosis Medical Definitions and Terms

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