Correlates of multiple basal cell carcinoma in a retrospective cohort study: Sex, histologic subtypes, and anatomic distribution

Basal cell carcinoma (BCC) is the most common malignancy in the United States.1 More than 41% of patients with 2 or more BCCs develop a subsequent BCC.2,3 Despite clinical awareness of risk factors for a second BCC, there remains a subset of individuals who develop significantly more BCCs than the average population. In this study, we sought to characterize the factors associated with high-frequency BCC, including sex, anatomic site, and histologic site.

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