Keratodermia blennorrhagicum
A skin disease that occurs in patients with reactive arthritis (formerly Reiter’s syndrome). Abbreviated KB. Classically, the areas of the skin that are involved are the palms of the hands and the soles of the feet, although other body surfaces may also be affected. The inflammation of the skin can come and go. When the inflammation is present, it appears as patches of reddish, raised pustules that can be painful and tender. These patchy areas may group together and peel periodically. KB can be treated with topical medications, including skin softeners (emollients) and medications that clear off the peeling, dry skin (keratolytic medications). Sometimes these treatments are used along with vitamin D creams, such as calcipotriene. Emotional stress and certain medications may aggravate the condition.
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- Keratolytic
Pertaining to keratolysis, the softening and shedding of the horny outer layer of the skin. A keratolytic agent is a peeling agent.
- Keratoma
An area of hardened skin, usually called a callus which is usually a response to frictional trauma to the skin.
- Keratosis
A localized horny overgrowth of the skin, such as a wart or callus. Among the common types of keratosis are actinic keratosis and seborrheic keratosis.
- Keratosis follicularis
A genetic skin disease that is characterized by slowly progressive hardening of the skin (keratosis) around the hair follicles. This disorder is inherited in an autosomal dominant manner and is due to mutation in a gene called ATP2A2 on chromosome 12. Also known as Darier disease.
- Keratosis pilaris
Small rough bumps, generally on the face, upper arms, and thighs. Keratosis refers to a localized overgrowth of the upper layer of skin. Pilaris pertains to the hair. In keratosis pilaris, the buildup of keratin (the hard protein in the skin, nails, and hair) is limited to the hair follicles.