title: Spontaneous appearance of an optic disk melanocytoma in an adult.
abstract: OBJECTIVE
  To report a melanocytoma of the optic disk in an adult who had prior photographic documentation that the affected disk was entirely normal.
  
  
  METHODS
  Clinical evaluation and fundus photography.
  
  
  RESULTS
  An asymptomatic 45-year-old woman was found on routine ocular examination to have a typical melanocytoma in her right optic disk. Fundus photographs made 13 years earlier showed a normal right optic disk with no sign of melanocytoma or other pigmented lesion.
  
  
  CONCLUSIONS
  Although optic disk melanocytoma is generally believed to be a congenital lesion, it can apparently develop spontaneously in adulthood.
authors.affiliation: Oncology Service, Wills Eye Hospital, Thomas Jefferson University, Philadelphia, Pennsylvania 19107, USA.
authors.forename: Jerry A
authors.initials: JA
authors.lastname: Shields
authors.forename: Carol L
authors.initials: CL
authors.lastname: Shields
authors.forename: Michele
authors.initials: M
authors.lastname: Piccone
authors.forename: Lory C
authors.initials: LC
authors.lastname: Snady-McCoy
mesh_terms: D005260:Female; D005654:Fundus Oculi; D006801:Humans; D008875:Middle Aged; D009508:Nevus, Pigmented / Q000473:pathology*; D009898:Optic Disk; D019574:Optic Nerve Neoplasms / Q000473:pathology*; D012016:Reference Values