title: Melanocytoma of the optic disc - a case report.
abstract: BACKGROUND
  Melanocytoma of the optic disc is a benign lesion.
  
  
  OBJECTIVE
  To describe a case of optic disc melanocytoma
  
  
  METHODS
  A 48-year old lady presented with gradual visual impairment associated with a floater. The right eye fundus examination showed a mass uniformly dark black in colour on the optic disc. The mass completely obscured the fluorescence on fluorescein angiography and was thus differentiated from malignant melanoma.
  
  
  CONCLUSIONS
  Optic disc melanocytoma can present with visual impairment and a floater. Fluorescein angiography can be useful to differentiate between malignant melanoma and melanocytoma.
authors.affiliation: Sagarmatha Choudhary Eye Hospital, Lahan, Siraha, Nepal.
authors.forename: H
authors.initials: H
authors.lastname: Sharma
authors.forename: L R
authors.initials: LR
authors.lastname: Puri
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D005451:Fluorescein Angiography; D005654:Fundus Oculi; D006801:Humans; D033401:Microscopy, Acoustic; D008875:Middle Aged; D009508:Nevus, Pigmented / Q000175:diagnosis*; D009898:Optic Disk / Q000000981:diagnostic imaging / Q000473:pathology*; D019574:Optic Nerve Neoplasms / Q000175:diagnosis*