title: An unusual presentation of a giant frontal sinus mucocele manifesting with a subcutaneous forehead mass.
abstract: BACKGROUND
  To describe the unusual manifestation of a giant frontal sinus mucocele.
  
  
  METHODS
  A 33-year-old female presented with blurring of vision in the left eye, periorbital swelling and a painless forehead mass. There was proptosis, partial ptosis, and an elongated, soft, subcutaneous mass over the left side of the forehead. CT scan showed a mass arising from the frontal sinus with both intraorbital and intracranial extension.
  
  
  METHODS
  Surgical excision of the mass confirmed the diagnosis of a mucocele.
  
  
  RESULTS
  Postoperatively, the patient was asymptomatic.
  
  
  CONCLUSIONS
  A subcutaneous soft-tissue mass may be the presenting complaint of a frontal mucocele. Careful examination of the surrounding skin may suggest the diagnosis of sinus-related disease and thus direct appropriate investigations.
authors: The Eye Institute, and Department of Ophthalmology, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore 308433. colintan_eye@yahoo.com.sg
authors: C S H
authors: CS
authors: Tan
authors: V K Y
authors: VK
authors: Yong
authors: L W
authors: LW
authors: Yip
authors: S
authors: S
authors: Amrith
mesh_terms: D000328:Adult; D005260:Female; D005546:Forehead; D005626:Frontal Sinus / Q000000981:diagnostic imaging; D006801:Humans; D008279:Magnetic Resonance Imaging; D009078:Mucocele / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D010254:Paranasal Sinus Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D014057:Tomography, X-Ray Computed