Department of Neurosurgery, Mount Sinai School of Medicine, 1 Gustave L. Levy Place, Box 1136, New York, NY 10029, USA.
Neurol Sci. 2010 Oct;31(5):625-30. doi: 10.1007/s10072-010-0227-3. Epub 2010 Mar 3.
Intracranial hemangiopericytomas are a rare type of primary brain tumor, representing only about 0.5% of all primary brain tumors. Even more rare is the co-existence of two juxtaposed primary brain tumors, termed a "collision" tumor. This report provides the first documentation in the literature of a hemangiopericytoma colliding with a meningioma, and recurring after treatment with gross total resection. Surgical samples were fully evaluated with hematoxylin and eosin and reticulin staining, as well as immunohistochemical analysis. Results were classically representative of a hemangiopericytoma (World Health Organization grade II) and of a meningioma (World Health Organization grade I). This report of a unique collision tumor not only augments the repertoire of collision tumor combinations described in literature but also provides follow-up on the clinical outcome of the patient, thereby raising clinically relevant issues ranging from presentation to treatment paradigms.
颅内血管外皮细胞瘤是一种罕见的原发性脑肿瘤，仅占所有原发性脑肿瘤的 0.5%左右。更为罕见的是同时存在两个毗邻的原发性脑肿瘤，称为“碰撞”肿瘤。本报告首次在文献中记录了一个血管外皮细胞瘤与脑膜瘤碰撞，并在完全切除后复发。手术标本经苏木精和伊红以及网状纤维染色以及免疫组织化学分析进行了全面评估。结果经典地代表了血管外皮细胞瘤（世界卫生组织 2 级）和脑膜瘤（世界卫生组织 1 级）。本报告中独特的碰撞肿瘤不仅增加了文献中描述的碰撞肿瘤组合的范围，而且还对患者的临床结果进行了随访，从而提出了从表现到治疗模式的临床相关问题。
