Mohs micrographic surgery (MMS) is the gold standard for treating various cutaneous tumors. MMS has evolved into a single-day, outpatient procedure. The tumor is excised, mapped, and processed with frozen, horizontal sections for immediate histologic evaluation. The process is repeated as necessary until the tumor is completely removed, with maximal conservation of normal tissue. Evaluation of 100% of the surgical margin allows for exceptional cure rates. The Mohs surgeon is trained in tumor excision, histopathology interpretation, and surgical reconstruction. The use of MMS is often part of a multidisciplinary approach to treating cutaneous tumors.
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