We report 7 cases of microcystic adnexal carcinoma (MAC) that involved
the face (n=6) and neck. The neck case occurred in a 10-year-old boy.
MAC are tumors that typically extend far beyond their assessed clinic
al margins. This report emphasizes the need for early microscopically
controlled excision of lesions because of the unreliability of clinica
l assessment and frequent perineural and bone extension. Treatment res
ults of 35 cases treated by Mohs surgery are tabulated.