title: Hibernoma presenting as an asymptomatic neck mass.
abstract: BACKGROUND
  Hibernomas are rare benign tumors of brown fat tissue origin. These tumors are generally found in locations where fetal fat persists (back, axilla, thorax and retroperitoneum).
  
  
  RESULTS
  We report a case of a patient with an asymptomatic neck mass that initially presented for evaluation of hoarseness. Imaging and complete surgical excision of the mass were performed and revealed hibernoma. Review of the literature for the presentation of hibernoma in the neck is performed.
  
  
  CONCLUSIONS
  Hibernomas are rare benign tumors that infrequently present in the neck. Complete surgical removal is curative. To date no malignant transformation or metastasis has been described.
authors: Department of Otolaryngology-HNS, Tufts Medical Center, Boston, MA, USA. Electronic address: wdagher@tuftsmedicalcenter.org.
authors: Walid
authors: W
authors: Dagher
authors: Lauren
authors: L
authors: Fedore
authors: Richard O
authors: RO
authors: Wein
mesh_terms: D058070:Asymptomatic Diseases; D006258:Head and Neck Neoplasms / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007828:Laryngoscopy; D008067:Lipoma / Q000473:pathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009334:Neck Muscles / Q000601:surgery; D014057:Tomography, X-Ray Computed; D014827:Vocal Cords / Q000601:surgery