title: Cyst within the parenchyma of the optic chiasm.
mesh_terms: D000328:Adult; D003399:Craniotomy; D003560:Cysts / Q000175:diagnosis; D006801:Humans; D008297:Male; D009897:Optic Chiasm; D009901:Optic Nerve Diseases / Q000175:diagnosis; D014792:Visual Acuity; D014794:Visual Fields