• S Utsuki, A Kurata, Y Miyasaka, M Takano, H Ootaka, and K Fujii.
• Department of Neurosurgery, Kitasato University School of Medicine, Sagamihara City, Kanagawa, Japan.
• Acta Neurochir (Wien). 2002 Jan 1; 144 (1): 97-101.

BackgroundA rare case of a left temporal arteriovenous malformation (AVM) with bleeding 10 days after removal of another hemorrhagic AVM in the frontal lobe is reported.MethodA 47-year-old man had an attack of headache and vomiting and was admitted to our hospital. On admission, a CT scan showed subcortical hemorrhage in the left frontal lobe. Left carotid angiography revealed four AVMs and a vertebro-basilar angiogram demonstrated a vascular malformation.FindingsFirst, a hemorrhagic AVM was removed with a hematoma. Following the operation, left carotid angiograms continued to show, AVMs, particularly a temporal AVM with increased blood flow, and after 10 days this hemorrhaged. This was surgically resected and the remaining small AVMs were treated by stereotactic radiosurgery.InterpretationThe patient had a high risk of hemorrhage. Adding hemodynamic stress to this situation, hemorrhage would have been expected to occur at an early time after the initial intervention for hemorrhagic AVM. Considering the risk of hemorrhage, other AVMs should undergo surgery as soon as possible after resection of hemorrhagic AVM.

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