Plaque (dermatology)
Plaque (dermatology)
A plaque in dermatology refers to a broad, raised area of skin that is often a characteristic symptom of various skin diseases. Plaques can vary in size, shape, and color, and can appear anywhere on the body. They are typically larger than 1 cm in diameter and can be caused by a variety of conditions, including psoriasis, eczema, and lichen planus.
Causes[edit | edit source]
Plaques are often associated with specific skin conditions:
- Psoriasis: This chronic skin condition causes cells to build up rapidly on the surface of the skin, forming thick, silvery scales and itchy, dry, red patches that are sometimes painful. The plaques in psoriasis are typically red, raised, and covered with white scales.
- Eczema: Also known as atopic dermatitis, eczema is a condition that makes your skin red and itchy. Plaques in eczema are typically red, itchy, and inflamed.
- Lichen planus: This condition presents as shiny, flat-topped bumps that are purplish in color. They often have a white, lacy pattern on the surface. Plaques in lichen planus are typically purple, flat, and shiny.
Diagnosis[edit | edit source]
Diagnosis of skin plaques typically involves a physical examination by a dermatologist. The dermatologist may also perform a skin biopsy to rule out other conditions and confirm the diagnosis.
Treatment[edit | edit source]
Treatment for skin plaques depends on the underlying condition causing them. Treatments may include topical steroids, phototherapy, and systemic medications. It's important to consult with a healthcare provider to determine the best treatment plan.
See also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD