title: Management of a hidradenoma with Mohs micrographic surgery.
abstract: BACKGROUND
  Hidradenomas are adnexal tumors that may grow to be very large and frequently recur after excision. Malignant transformation and metastatic spread can occur and histologic distinction of benign from malignant hidradenomas can be very difficult. Some tumors with bland histology have demonstrated aggressive behavior.
  
  
  OBJECTIVE
  To decide the benefits of management with Mohs micrographic surgery of large hidradenomas.
  
  
  METHODS
  The literature was reviewed, including both the clinical course of the tumor and histologic features. The case of our report was interpreted in light of the review.
  
  
  RESULTS
  Three stages of Mohs surgery were required for complete removal of the hidradenoma. The patient remains free of recurrence.
  
  
  CONCLUSIONS
  This report highlights the difficulties in distinguishing benign from malignant hidradenomas and emphasizes the benefits of Mohs surgery for large or recurrent tumors.
authors.affiliation: Department of Medicine/Division of Dermatology, Milton S. Hershey Medical Center, Pennsylvania State University College of Medicine, Hershey 17033.
authors.forename: N S
authors.initials: NS
authors.lastname: House
authors.forename: K F
authors.initials: KF
authors.lastname: Helm
authors.forename: M E
authors.initials: ME
authors.lastname: Maloney
mesh_terms: D006607:Adenoma, Sweat Gland / Q000601:surgery*; D002680:Chin / Q000601:surgery; D005153:Facial Neoplasms / Q000601:surgery*; D005260:Female; D006801:Humans; D008875:Middle Aged; D015580:Mohs Surgery; D012878:Skin Neoplasms / Q000601:surgery*; D013544:Sweat Gland Neoplasms / Q000601:surgery*