title: Mohs surgery for malignant eccrine neoplasms.
abstract: BACKGROUND
  Eccrine carcinomas (ECs) are rare tumors with potentially aggressive clinical behavior and a high recurrence rate following conventional surgical excision. With the exception of microcystic adnexal carcinoma (MAC), there have been few reports on the use of Mohs micrographic surgery (MMS) as a primary treatment for EC.
  
  
  OBJECTIVE
  To review the use of MMS for EC and compare treatment outcomes with those of conventional surgical excision.
  
  
  METHODS
  We report our use of MMS in 7 cases of EC and review the literature regarding the use of MMS for EC excluding microcystic adnexal carcinoma (MAC), which has been described elsewhere.
  
  
  RESULTS
  A total of 19 case reports describing MMS for non-MAS malignant eccrine neoplasms were reviewed. There were no reported recurrences over an average follow-up period of 29 months, whereas the local recurrence rate following conventional surgical excision of these neoplasms from 10-70%.
  
  
  CONCLUSIONS
  While the clinical experience is limited, the use of MMS appears to decrease recurrence rates when compared to conventional surgical excision. Further experience and longer follow-up intervals will be necessary to demonstrate superior efficacy and recommended surgical margins.
authors.affiliation: Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania 19107, USA.
authors.forename: John K
authors.initials: JK
authors.lastname: Wildemore
authors.forename: Jason B
authors.initials: JB
authors.lastname: Lee
authors.forename: Tatyana R
authors.initials: TR
authors.lastname: Humphreys
mesh_terms: D018250:Acrospiroma / Q000175:diagnosis / Q000453:epidemiology / Q000473:pathology / Q000601:surgery; D000230:Adenocarcinoma / Q000175:diagnosis / Q000453:epidemiology / Q000473:pathology / Q000601:surgery; D000328:Adult; D000368:Aged; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015580:Mohs Surgery / Q000706:statistics & numerical data; D009362:Neoplasm Metastasis; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis* / Q000453:epidemiology / Q000473:pathology / Q000601:surgery*; D015143:Philadelphia / Q000453:epidemiology; D013544:Sweat Gland Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000473:pathology / Q000601:surgery*