PUVA keratosis

PUVA Keratosis

PUVA keratosis (pronounced: p-yoo-vah ker-uh-toh-sis) is a type of skin disorder that results from long-term PUVA therapy.

Etymology

The term "PUVA" is an acronym for Psoralen combined with UVA radiation, a type of phototherapy used to treat various skin conditions. "Keratosis" comes from the Greek word "keras" meaning horn and "-osis" indicating a condition or process.

Definition

PUVA keratosis is a condition characterized by the development of rough, scaly patches on the skin following prolonged exposure to PUVA therapy. This therapy involves the use of a photosensitizing drug (psoralen) and exposure to ultraviolet A (UVA) light.

Symptoms

The primary symptom of PUVA keratosis is the appearance of rough, scaly patches on the skin. These patches may be white, brown, or pink in color. Other symptoms may include itching, burning, or tenderness in the affected area.

Causes

PUVA keratosis is caused by long-term exposure to PUVA therapy. This therapy is often used to treat skin conditions such as psoriasis, eczema, and vitiligo. However, prolonged use can damage the skin, leading to the development of keratosis.

Treatment

Treatment for PUVA keratosis typically involves discontinuing PUVA therapy and managing symptoms. This may include the use of moisturizers to soothe dry, itchy skin and sun protection to prevent further damage. In some cases, topical retinoids or cryotherapy may be used to remove the keratotic patches.

Related Terms

• Phototherapy
• Psoriasis
• Eczema
• Vitiligo
• Keratosis
• Psoralen
• UVA radiation

External links

• Medical encyclopedia article on PUVA keratosis
• Wikipedia's article - PUVA keratosis

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