giant pigmented hairy nevus
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giant pigmented hairy nevus
Giant hairy nevus, giant pigmented nevus Dermatology A premalignant congenital melanocytic nevus, which measures > 5 cm in greatest dimension, and has a 'garment-like' distribution-bathing trunk, cap, coat sleeve, stocking, often with scattered satellite lesions; up to 12% develop melanoma; leptomeningeal involvement may be accompanied by epilepsy and mental retardationMcGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.