dysplastic naevus syndrome
dysplastic naevus syndromeThe presence of 100 or more naevi with at least one of 8 mm or more in diameter and at least one that shows atypical features. The term is sometimes applied to patients with only one atypical naevus. People with atypical naevi are about 15 times are likely to develop malignant melanoma than those in the general population.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005