Chronic actinic dermatitis

Chronic Actinic Dermatitis

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Chronic Actinic Dermatitis

Chronic Actinic Dermatitis (CAD) is a skin condition characterized by an abnormal sensitivity to sunlight, specifically ultraviolet (UV) radiation. It is also known as photosensitivity dermatitis or actinic reticuloid syndrome.

Overview

Chronic Actinic Dermatitis is a type of photosensitivity, a condition in which the skin reacts abnormally to sunlight. It is a chronic condition, meaning it lasts for a long time or constantly comes and goes. CAD is more common in men and usually develops later in life, typically in individuals over 50 years of age.

Symptoms

The symptoms of CAD can vary, but they often include redness, itching, and thickening of the skin. These symptoms usually occur on areas of the skin that are exposed to the sun, such as the face, neck, and hands. In severe cases, the skin may also blister or peel.

Causes

The exact cause of CAD is unknown, but it is thought to be an immune system response to damage caused by UV radiation. Some people may also have a genetic predisposition to the condition.

Diagnosis

Diagnosis of CAD is typically made based on the patient's symptoms and medical history. A skin biopsy may also be performed to rule out other conditions.

Treatment

Treatment for CAD usually involves avoiding sun exposure and using sun-protective clothing and sunscreen. In some cases, medication may be prescribed to help manage symptoms.

See Also

• Photodermatitis
• Sunburn
• Photosensitivity in humans