Birthmarks - pigmented

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Mongolian blue spots

Skin layers

Nevus sebaceous; Hairy nevus; Nevi; Mole; Cafe-au-lait spots; Congenital nevus

• Skin, abnormally dark or light
  • Is usually brown, black, bluish, or blue-gray
• Skin lumps
• Skin lesion
• Discolorations, lumps, or lesions
  • May be variable in size
  • May contain hair
  • May be smooth, flat, raised, or wrinkled

Diagnosis is usually made on the basis of the appearance of the skin area. A biopsy may be performed on a removed mole to look for cancerous changes.

Review Date: 10/16/2006
Reviewed By: Michael S. Lehrer, M.D., Department of Dermatology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network.