A57-year-oldimmunosuppressedrenaltransplantrecipientexperienced2monthsofoscillopsia,vertigo,ataxia,andheadaches.Theheadachesweredescribedasconstant,bifrontal,dull,andassociatedwithphotophobiaandnauseabutnoauraorpositional鍖椾含鍝噷鐪嬬櫧鐧滈姣旇緝濂?娌荤枟鐧界櫆椋庣殑涓嵂鏂?