title: Poromas of the head and neck.
abstract: BACKGROUND
  The "eccrine" poroma is a benign neoplasm previously thought to originate from the eccrine sweat gland. Early studies suggested that these were primarily lesions of the hairless acral surfaces.
  
  
  OBJECTIVE
  This article reports the clinical and histologic findings of 10 cases of poroma of the head and neck area.
  
  
  METHODS
  The clinical and histologic findings of 10 cases of poroma of the head and neck area are compared with 10 poromas occurring on the extremities.
  
  
  RESULTS
  Some poromas demonstrated evidence for apocrine origin. Unlike poromas found on the extremities, head and neck poromas were usually asymptomatic and were never correctly diagnosed clinically. Although 9 of 10 poromas on the extremities occurred in male patients, the head and neck poromas showed no gender predilection.
  
  
  CONCLUSIONS
  Clinicians should be aware that poromas can occur in the head and neck area and may be of apocrine origin.
authors.affiliation: Department of Medicine, Division of Dermatology, Pennsylvania State University, Hershey, USA.
authors.forename: T O
authors.initials: TO
authors.lastname: Moore
authors.forename: H L
authors.initials: HL
authors.lastname: Orman
authors.forename: S K
authors.initials: SK
authors.lastname: Orman
authors.forename: K F
authors.initials: KF
authors.lastname: Helm
mesh_terms: D018250:Acrospiroma / Q000473:pathology*; D000328:Adult; D000368:Aged; D005260:Female; D006258:Head and Neck Neoplasms / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013544:Sweat Gland Neoplasms / Q000473:pathology*