Call-fleming syndrome: an extraordinary complication of tonsillectomy.

A 36 years old woman underwent tonsillectomy for recurrent tonsillitis. At about one week in the postoperative period, she developed sudden onset severe ("thunderclap"), recurrent headaches and focal neurological signs including visual disturbances, ataxia and myoclonic jerks. Serial imaging with MRI, MRA and CT angiography revealed reversible white matter focal edema and segmental cerebral vasoconstriction. A diagnosis of Call-Fleming syndrome was made based on her symptoms and imaging findings, and she was started on nimodipine. She made a slow recovery but still has slight unilateral foot drop even 12 months since the initial event. This is the first case of Call-Fleming syndrome occurring following an ENT procedure.