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Blue Nevus

definition

Group of melanocytic lesions which all appear blue in colour due to the optical effects of light reflecting off melanin deep in the dermis. The blue nevus, a benign, usually solitary lesion, represents a localized proliferation of dermal melanocytes. It presents as a dark blue to black, moderately firm, rounded, sharply defined nodular tumour composed of spindle-shaped melanocytes with slender cytoplasmic processes, occurring often in association with melanin-laden macrophages in a sclerotic dermis.

synonyms

Blue Nevus, Nevus Ceruleus, Nevus Bleu

UMLS

Blue naevus, Blue Nevu, Blue nevus, Blue nevus, NOS, Dermal melanocytoma, Jadassohn's blue naevus, Jadassohn's blue nevus, Nevu, Blue, Nevus, Blue

images

5 images found for this diagnose localisation: scalp, diagnosis: Blue Nevus diagnosis: Blue Nevus diagnosis: Blue Nevus diagnosis: Blue Nevus diagnosis: Blue Nevus