B K Mole Syndrome

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)