Pearl G S, Takei Y
Neurosurgery. 1982 Oct;11(4):486-90.
Hemangioendotheliomas are vascular tumors that rarely involve the neuraxis. However, when they do, they must be differentiated from the other neoplastic vascular lesions that more commonly involve the central nervous system (CNS). We describe the ultrastructural features of three hemangioendotheliomas of the neuraxis. These lesions are characterized by the proliferation of endothelial cells around vascular lumina and of pericytes outside of the endothelial basal lamina. These features differ from those of other vascular tumors of the CNS. Based on these observations, we consider hemangioendothelioma to be a distinct entity among the neoplasms of vascular origin in the CNS.
血管内皮瘤是一种很少累及神经轴的血管性肿瘤。然而，当它们累及神经轴时，必须与其他更常见累及中枢神经系统（CNS）的肿瘤性血管病变相鉴别。我们描述了三例神经轴血管内皮瘤的超微结构特征。这些病变的特点是血管腔周围内皮细胞和内皮基膜外周细胞的增殖。这些特征与中枢神经系统其他血管肿瘤不同。基于这些观察结果，我们认为血管内皮瘤在中枢神经系统血管源性肿瘤中是一种独特的实体。
