Table 2.
The histological features of angiomatous PXA
| Histological features | Sugita et al. 1990 [17] | Takahabashi et al. 1995 [23] | Lee et al. 1996 [22] | Sugita et al. 1999 [20] | Richard et al. 1999 [21] | Present case | |
|---|---|---|---|---|---|---|---|
| Case 1 | Case 2 | Case 3 | Case 4 | Case 5 | Case 6 | Case 7 | |
| Highly vascular configuration | + | + | + | + | + | + | + |
| Microcystic formation | ND | ND | ND | ND | + | ND | +, focal |
| storiform or fascicular growth pattern with spindled cells | ND | ND | + | ND | + | +, focal | |
| Anaplasic features | ND | ND | ND | - | - | - | - |
| “Epithelioid” cells | ND | ND | ND | - | - | ND | + |
| Pleomorphism | + | + | + | ND | + | + | + |
| Foamy or vacuolated cytoplasm | + | + | + | + | + | + | + |
| Giant cells | + | + | + | ND | + | + | + |
| Xanthomatous tumor cells | + | + | ND | ND | + | + | - |
| Dysplastic neurons | + | + | + | ND | + | + | - |
| Intranuclear inclusions | ND | ND | ND | ND | ND | ND | + |
| Calcification | ND | ND | ND | ND | + | + | + |
| Rosenthal fibers | ND | ND | ND | ND | ND | + | - |
| Eosinophilic hyaline droplets | ND | ND | ND | ND | ND | + | + |
| Granular bodies | |||||||
| eosinophilic | + | + | + | + | + | + | + |
| Pale | ND | ND | ND | ND | ND | ND | + |
| Hemosiderin deposition | ND | ND | ND | + | - | + | +, focal |
| Perivascular lymphocytes infiltration | + | + | ND | + | + | + | + |
| Reticulin network | ND | ND | ND | + | - | - | - |
| Mitoses | rare | rare | rare | rare | rare | rare | rare |
| Necrosis | - | - | - | - | - | - | - |
| Endothelial proliferation | - | - | - | - | - | - | - |
+: the corresponding feature exists; −: the corresponding feature does not exist; ND: no data