几乎全部阳性(≥95%的病例阳性):
FVIII、FVIIIRAg、CD31、CD68几乎全部阴性(<5%的病例阳性):
GLUT1、CD45、Desmin、S1004.结节内可见散在多少不等的组织样细胞和多核巨细胞,类似非坏死性肉芽肿性病变;
5.间质可见出血、含铁血黄素沉积,纤维化硬化、淋巴细胞浸润等。
非肿瘤性的肉芽肿性病变:缺乏明显的小血管结构;
丛状纤维组织细胞瘤:无密集的血管结构和血管瘤样区域;
Kaposi型血管内皮细胞瘤:无多核巨细胞。
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Yu L, Lao I W, Wang J. Giant cell angioblastoma of bone: four new cases provide further evidence of its distinct clinical and histopathological characteristics.[J]. Virchows Archiv, 2015, 467(1):95-103.