几乎全部阳性(≥95%的病例阳性):
actin-HHF-35、Vimentin、SMA通常阳性(<95%,≥75%的病例阳性):
HCAD几乎全部阴性(<5%的病例阳性):
CK-PAN、FVIII、FVIIIA、FVIIIRAg、FXIIIA、Desmin、S1002. 组织学上有两种类型:一种在形态上类似于平滑肌肉瘤或纤维肉瘤;另一种在总体结构上类似良性血管球瘤,瘤细胞由高度恶性的圆形细胞组成,肿瘤内常可见到良性血管球瘤区域;
3. 恶性血管球瘤的诊断有以下2个标准:
1)弥漫的核多形性核+任何水平的核分裂象
或2)可见非典型性核分裂像;
4. 血管球瘤不存在上述诊断恶性的2个标准但存在除了核多形性之外的非典型特征者,诊断为恶性潜能未定的血管球瘤,包括:肿瘤大于2cm, 部位较深,核分裂象活跃等。
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