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This brief overview explains the main types of psoriasis that affect your skin, nails, and joints.
WebMD's Skin Anatomy Page provides a detailed image of the skin and its parts as well as a medical definition. Learn about the skin's function and conditions that may affect the skin.
WebMD's Hair Anatomy Page provides a detailed image and definition of the hair and its parts.
Picture of Multiple Lentigines Syndrome on Back
Neurofibromatosis, Crowe's sign. Axillary freckling in a child with neurofibromatosis.
Nevus spilus. Large tan macule dotted with numerous superimposed small dark nevi.
Drug hypersensitivity reaction. Morbilliform rash eventually spread to the face and extremeties of the same child.
The past decade has seen some promising advances in the treatment of psoriasis, specifically the use of biologic drugs. Learn more about how biologics work and how they are given.
An example of hyperpigmentation is melasma (also known as chloasma). This condition is characterized by tan or brown patches, most commonly on the face.
Perioral dermatitis. Scattered inflammatory papules, erythema, and scale in a child who has been applying topical steroids to the area.
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