title: Fusiform dilatation of the outer contour of a dissected anterior cerebral artery revealed by magnetic resonance cisternography in a patient with simultaneous cerebral infarction and subarachnoid hemorrhage.
abstract: A 46-year-old man presented with right hemiparesis. Cranial magnetic resonance (MR) imaging revealed both an acute cerebral infarction in the territory of the left anterior cerebral artery (ACA) and a thin subarachnoid hemorrhage in the left superior frontal sulcus. MR angiography revealed stenosis at the A2 segment of the left ACA. MR cisternography was, therefore, performed on day 12 after admission using sagittal, 3-dimensional, heavily T2-weighted images. Fusiform dilatation of the outer contour was confirmed by MR cisternography at the region of narrowing identified by MR angiography. This case indicates that the combination of MR cisternography and angiography can be useful for detecting ACA dissection.
authors: Department of Neurology and Cerebrovascular Medicine, Saitama International Medical Center, Saitama Medical University, Saitama. Electronic address: yujik@saitama-med.ac.jp.
authors: Yuji
authors: Y
authors: Kato
authors: Department of Neurology and Cerebrovascular Medicine, Saitama International Medical Center, Saitama Medical University, Saitama.
authors: Takeshi
authors: T
authors: Hayashi
authors: Department of Diagnostic Radiology, Saitama International Medical Center, Saitama Medical University, Saitama.
authors: Akira
authors: A
authors: Uchino
authors: Department of Endovascular Neurosurgery, Saitama International Medical Center, Saitama Medical University, Saitama, Japan.
authors: Yoshiaki
authors: Y
authors: Kakehi
authors: Department of Endovascular Neurosurgery, Saitama International Medical Center, Saitama Medical University, Saitama, Japan.
authors: Fumitaka
authors: F
authors: Yamane
authors: Department of Endovascular Neurosurgery, Saitama International Medical Center, Saitama Medical University, Saitama, Japan.
authors: Shoichiro
authors: S
authors: Ishihara
authors: Department of Neurology and Cerebrovascular Medicine, Saitama International Medical Center, Saitama Medical University, Saitama.
authors: Norio
authors: N
authors: Tanahashi
mesh_terms: D000784:Aortic Dissection / Q000150:complications / Q000473:pathology*; D020771:Anterior Cerebral Artery / Q000473:pathology*; D002544:Cerebral Infarction / Q000150:complications / Q000473:pathology*; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D008875:Middle Aged; D013345:Subarachnoid Hemorrhage / Q000150:complications / Q000473:pathology*
keywords: Anterior cerebral artery dissection; cerebral infarction; magnetic resonance cisternography; subarachnoid hemorrhage