Paralysis of upward gaze as a presenting symptom of vitamin B12 deficiency.
A 47-year-old woman presented with paralysis of upward gaze associated with Addison's pernicious anaemia. Administration of cyanocobalamin resulted in significant improvement of eye movements and haematological parameters. Isolated paralysis of upward gaze may be a feature of vitamin B12 deficiency.
D000752:Anemia, Pernicious / Q000175:diagnosis* / Q000188:drug therapy; D005133:Eye Movements / Q000187:drug effects; D005260:Female; D006801:Humans; D008875:Middle Aged; D009886:Ophthalmoplegia / Q000209:etiology*; D014805:Vitamin B 12 / Q000627:therapeutic use; D014806:Vitamin B 12 Deficiency / Q000175:diagnosis* / Q000188:drug therapy
D014805:Vitamin B 12