title: Nodular hidradenoma. A report of three cases and review of the literature.
abstract: BACKGROUND
  Nodular hidradenoma is a rare adnexal tumor most likely arising from the eccrine gland.
  
  
  OBJECTIVE
  We describe three cases of a nodular hidradenoma presenting as an expanding nodule on the forehead (case 1), left lower extremity (case 2), and left neck (case 3). We discuss the clinical and histologic features of this tumor and present a review of the literature.
  
  
  CONCLUSIONS
  This report highlights the salient histologic findings that distinguish nodular hidradenomas from other adnexal tumors and emphasizes the benefit of complete local excision to prevent recurrence of these tumors.
authors.affiliation: Department of Dermatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.
authors.forename: A J
authors.initials: AJ
authors.lastname: Stratigos
authors.forename: S
authors.initials: S
authors.lastname: Olbricht
authors.forename: T H
authors.initials: TH
authors.lastname: Kwan
authors.forename: K E
authors.initials: KE
authors.lastname: Bowers
mesh_terms: D006607:Adenoma, Sweat Gland / Q000473:pathology; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013544:Sweat Gland Neoplasms / Q000473:pathology