Association of Patient Risk Factors and Frequency of Nevus-Associated Cutaneous Melanomas.

Importance: The reported frequencies of associations between primary cutaneous melanomas and melanocytic nevi vary widely between 4% and 72%. However, earlier histopathologic studies were limited by their retrospective design and did not assess the influence of important patient-related risk factors.

Objectives: To identify the frequency of nevus-associated melanomas and correlate patient- and melanoma-related factors.