title: Visual disturbance as initial presentation of hairy cell leukemia.
abstract: OBJECTIVE
  Hairy cell leukemia (HCL) is a rare disorder that occasionally has visual symptoms after diagnosis. The authors present a case of HCL in which bilateral visual symptoms led to the initial diagnosis.
  
  
  METHODS
  Observational case report.
  
  
  RESULTS
  Bilateral decreased vision to 20/30 in the right eye and 20/40 in the left due to intraretinal and preretinal hemorrhages with no other systemic signs or symptoms prompted a hematologic evaluation in which HCL was found to be the causative disorder in a previously healthy 41-year-old man.
  
  
  CONCLUSIONS
  The authors present a rare case in which bilateral visual complaints led to the diagnosis of HCL. Thus, though uncommon, HCL should be considered in the differential diagnosis of otherwise unexplained retinal hemorrhages.
authors.affiliation: Department of Ophthalmology, Stanford University School of Medicine, Stanford, CA - USA.
authors.forename: Resmi
authors.initials: R
authors.lastname: Charalel
authors.forename: Atul
authors.initials: A
authors.lastname: Jain
authors.forename: Leelanand
authors.initials: L
authors.lastname: Rachakonda
authors.forename: Michael
authors.initials: M
authors.lastname: Gaynon
mesh_terms: D000328:Adult; D005451:Fluorescein Angiography; D006801:Humans; D007943:Leukemia, Hairy Cell / Q000175:diagnosis*; D008297:Male; D012166:Retinal Hemorrhage / Q000175:diagnosis; D014786:Vision Disorders / Q000175:diagnosis*; D014792:Visual Acuity