Al-Brahim Nabeel, Devilliers Rocco, Provias John
Department of Pathology, McMaster University, Hamilton, Ontario, Canada.
Ann Diagn Pathol. 2004 Dec;8(6):347-51. doi: 10.1053/j.anndiagpath.2004.08.005.
Hemangiopericytoma is a rare tumor of the central nervous system and has seldom been reported intraventricularly. A 55-year-old woman presented with gradual onset of left side weakness, gait ataxia, and tendency to miss objects in the left visual field of uncertain duration. Magnetic resonance imaging with contrast showed a tumor with homogenous enhancement in the right lateral ventricle. The patient underwent right temporoparietal stealth-assisted craniotomy and surgical removal of the tumor. Histopathologic examination with ancillary tests confirmed hemangiopericytoma. Awareness that hemangiopericytoma can occur as an intraventricular tumor is important for clinicians and pathologists. Because of radiologic similarity, this tumor is not to be confused with intraventricular meningioma because the prognosis is different.
血管外皮细胞瘤是一种罕见的中枢神经系统肿瘤，很少有发生于脑室内的报道。一名55岁女性，逐渐出现左侧肢体无力、步态共济失调，以及左侧视野中视物不清，持续时间不详。增强磁共振成像显示右侧脑室内有一个均匀强化的肿瘤。患者接受了右颞顶隐蔽辅助开颅手术，肿瘤被完整切除。组织病理学检查及辅助检查确诊为血管外皮细胞瘤。临床医生和病理学家应意识到血管外皮细胞瘤可发生于脑室内。由于影像学表现相似，该肿瘤不应与脑室内脑膜瘤相混淆，因为它们的预后不同。
