Papulosquamous disorder

Papulosquamous disorder is a classification of skin diseases characterized by scaly papules and plaques. The term is not a diagnosis, but a descriptive term that can be applied to a variety of diseases. The most common papulosquamous disorders include psoriasis, lichen planus, pityriasis rosea, and seborrheic dermatitis.

Definition

Papulosquamous disorders are a group of skin diseases that present with papules and scales. Papules are small, raised, and solid pimples, while scales are flaky skin. These disorders can affect any part of the body, but are most commonly found on the arms, legs, and trunk.

Types of Papulosquamous Disorders

There are several types of papulosquamous disorders, including:

• Psoriasis: A chronic skin condition that causes red, itchy, and scaly patches. It is thought to be an autoimmune disorder, where the body's immune system attacks healthy cells.

• Lichen Planus: A condition that can cause swelling and irritation in the skin, hair, nails, and mucous membranes. It is also thought to be an autoimmune disorder.

• Pityriasis Rosea: A skin rash that usually begins as a large circular or oval spot on your chest, abdomen or back. The cause of pityriasis rosea is not known, but it is usually harmless and goes away without treatment.

• Seborrheic Dermatitis: A common skin condition that mainly affects your scalp. It causes scaly patches, red skin and stubborn dandruff.

Diagnosis

Diagnosis of papulosquamous disorders is usually based on the appearance of the skin. A dermatologist may also perform a skin biopsy, where a small piece of skin is removed and examined under a microscope.

Treatment

Treatment for papulosquamous disorders depends on the specific disorder and its severity. Treatments may include topical creams, light therapy, and in some cases, oral medications.

See Also

• Dermatology
• Skin Biopsy
• Autoimmune Disorders

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