dysplastic nevus
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dys·plas·tic ne·vus
a nevus exceeding 5 mm in diameter, with irregular, indistinct, or notched borders and mixed tan-to-black and pink-to-red color. Microscopically these are basally nested and scattered intraepidermal melanocytes with hyperchromatic nuclei larger than those of basal keratinocytes. If multiple and associated with a family history of melanoma, these nevi have a high risk of malignant change, but isolated dysplastic nevi in the absence of a family history of melanoma are less frequently premalignant.
See also: malignant mole syndrome.
See also: malignant mole syndrome.
Synonym(s): dysplastic nevus syndrome
See: dysplastic nevus syndrome.Farlex Partner Medical Dictionary © Farlex 2012
dysplastic nevus
Dermatology A premalignant skin lesion characterized by irregular, > 5 mm in diameter macules numbering from a few to hundreds with a central papule, variegated dark color and lenticular changesMcGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
dys·plas·tic ne·vus
(dis-plastik nēvŭs)Skin malformation exceeding 5 mm in diameter, with irregular, indistinct, or notched borders and colored tan-to-black and pink-to-red.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012