Dynamic and static cerebral perfusion scintigraphy of cerebral arteriovenous malformations

A 43-year-old man fell down after drinking alcohol and had an abnormal finding on brain computed tomography in the emergency room. The findings of a neurologic examination were not significant. Cerebral perfusion scintigraphy was performed using Tc-99m L,L-ethylcysteinate dimer (Tc-99m ECD). Dynamic radionuclide angiography showed a site of increased activity in the left cerebral hemisphere. SPECT showed decreased perfusion in the left corpus striatum. MRI showed a left caudate head arteriovenous malformations (AVM). This is a rare case in which dynamic and SPECT Tc-99m ECD images show the presence of an AVM that correlated with MRI.