Hayashi N, Fukuda O, Endo S, Takaku A
Department of Neurosurgery, Toyama medical and Pharmaceutical University, Japan.
No To Shinkei. 1996 Nov;48(11):1053-6.
A case with intracerebral hemorrhage secondary to dissecting aneurysm of the anterior cerebral artery was reported. A 36-year-old male, known to have hypertension, developed somnolence and paresis of the left leg while skiing. There was no evidence of trauma. A plain head CT on admission revealed a high density in the right frontoparietal lobe. Three days after the admission CT revealed low density in the area supplied by the right anterior cerebral artery. An angiogram disclosed a double lumen, suggesting a pathognomonic sign of dissecting aneurysm at the A2 segment of the anterior cerebral artery. In the literature, 18 cases of dissecting aneurysm of the anterior cerebral artery were reported including this case. Eleven of the 17 cases were idiopathic, and 8 of the 11 cases had hypertension. We briefly discussed the relationship between the etiology of dissecting aneurysm and hypertension. Cerebral dissecting aneurysm is rare cause of intracerebral hemorrhage. It should be considered in diagnosis when young individuals develop intracerebral hemorrhage.
报告了1例大脑前动脉夹层动脉瘤继发脑出血的病例。一名36岁男性，已知患有高血压，在滑雪时出现嗜睡和左腿无力。无外伤证据。入院时头颅平扫CT显示右额顶叶高密度影。入院后3天CT显示右大脑前动脉供血区低密度影。血管造影显示双腔，提示大脑前动脉A2段夹层动脉瘤的特征性征象。文献中报道了包括本病例在内的18例大脑前动脉夹层动脉瘤。17例中的11例为特发性，11例中的8例患有高血压。我们简要讨论了夹层动脉瘤的病因与高血压之间的关系。脑夹层动脉瘤是脑出血的罕见原因。年轻个体发生脑出血时，诊断中应考虑该病。
