Intraparenchymal blood-fluid levels: new CT sign of arteriovenous malformation rupture.

A 64-year-old woman , in previous good health except for a questionable history of mild hypertension, complained of frontal headache with nausea and dizziness on the evening before admission. She was found unresponsive the next morning. Physical examination revealed a left hemiparesis and a blood pressure of 150/ 64 mm Hg. CT revealed a large frontal intracerebral hematoma with minimal shift. Layering of blood within a cystic cavity below the hematoma was noted (Fig . 1). There was no enhancement after administering a 100 ml bolus injection of meglumine diatrizoate (Renografin 60). Because of rapid deterioration , the patient was taken immediately