Outcomes of Mohs Micrographic Surgery at the American Society for Dermatologic Surgery International Traveling Mentorship Program International Mohs Fellowship Recognition Units: A Retrospective Survey of 5889 Cases From South Africa, Romania, and the Netherlands

BACKGROUNDThe American Society for Dermatologic Surgery (ASDS) International Traveling Mentorship Program (ITMP) has initiated an International Mohs Fellowship Recognition Program, with 3 centers accredited to date. OBJECTIVETo describe and compare the outcomes of Mohs micrographic surgery (MMS) at the three units. METHODSFrom patient files, we extracted demographic information, as well as tumor type, location of tumor, tumor histology, stages of MMS, and outcomes. RESULTSAt the 3 units, 3,899 patients were treated with MMS over a 5-year period in the South African unit, and 1,141 cases in the Romanian unit. Over a 3-year period, 849 cases were treated in the Netherlands unit. Basal cell carcinomas (BCCs) constituted 78.9% (South African unit), 79% (Romanian unit), and 97.2% (Netherlands unit), and squamous cell carcinomas (SCCs) 17.7% (South African unit), 19% (Romanian unit), and 0.7% (Netherlands unit) of the tumors treated. The recurrence rate following MMS was low, at 0.1% (South African Unit) and 0.17% (Romanian Unit) of cases at the end of the study period, with a median follow-up time of 2 years. CONCLUSIONMohs micrographic surgery is an effective treatment modality for removing BCC and SCC at ASDS ITMP–recognized International Mohs Fellowship units.