Canadian Medical Guide > Diseases > Neoplasms > Neoplasms by Histologic Type > Nevi and Melanomas > Nevus > Dysplastic Nevus Syndrome Terms and Definitions

Dysplastic Nevus Syndrome

Medical Definition:	Clinically atypical nevi (usually exceeding 5 mm in diameter and having variable pigmentation and ill defined borders) with an increased risk for development of non-familial cutaneous malignant melanoma. Biopsies show melanocytic dysplasia. Nevi are clinically and histologically identical to the precursor lesions for melanoma in the B-K mole syndrome. (Stedman, 25th ed)
Guide Notes:	do not use /blood supply /chem /second /secret /ultrastruct
Also Called:	Dysplastic Nevi,Familial Atypical Multiple Mole-Melanoma
Previously Indexed:	Melanoma (1966-1986),Nevus (1966-1986),Nevus, Pigmented (1966-1986)

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