Recurrent Tumors Referred for Mohs Micrographic Surgery: A 12-Year Experience at a Single Academic Center

BACKGROUND: Mohs micrographic surgery (MMS) is used for treatment of primary and recurrent tumors. Compared with primary tumors, recurrent tumors are often more aggressive. OBJECTIVE: To understand differing characteristics between primary versus recurrent tumors treated by MMS. MATERIALS AND METHODS: The authors conducted a retrospective review of a 12-year period at 1 academic center. Recurrent tumors were defined as recurrent if previously treated with cryotherapy, topical chemotherapeutics, electrodesiccation and curettage, or excision. Statistical analysis was conducted with p ≤ .05 considered significant. RESULTS: A total of 17,971 cases were reviewed, of which 10.5% represented recurrent tumors. Recurrent tumors occurred more commonly in men (ratio 2.2:1). They presented in older individuals (p

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