title: Isolated Xanthoma Of The Sphenoid Sinus: A Rare Presentation.
abstract: OBJECTIVE
  To present the first case in the English literature of a sphenoid xanthoma.
  
  
  METHODS
  Case Report
  
  
  CONCLUSIONS
  A 36 year-old Hispanic female with past medical history of Hashimoto's hypothyroidism and family history of hyperlipidemia that presented with a 1-year history of sporadic left sided epistaxis. A paranasal sinus Computed Tomography (CT) was performed revealing a soft tissue lesion infiltrating the left sphenoid sinus. Patient underwent endoscopic sinus sphenoidotomy with intraoperative findings of a yellow-tan, friable soft tissue mass filling the left sphenoid sinus. Biopsies were taken which exhibited histologically findings consistent with a xanthoma.
  
  
  CONCLUSIONS
  In a patient with hyperlipidemia isolated lesions on paransasal sinuses can be related to xanthoma formation.
mesh_terms: D000328:Adult; D004724:Endoscopy; D005260:Female; D050031:Hashimoto Disease / Q000150:complications; D006801:Humans; D006949:Hyperlipidemias / Q000150:complications / Q000235:genetics; D010254:Paranasal Sinus Diseases / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology / Q000601:surgery; D013101:Sphenoid Sinus / Q000473:pathology* / Q000601:surgery; D014973:Xanthomatosis / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology / Q000601:surgery