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Table 2: 
General imaging features of 9 patients with hemangiopericytoma
Patient Location Shape Size^a (mm) Necrosis Edema Hyperostosis or Bone Erosion
1 Right middle cranial fossa Multilobular 55 × 48 × 41 Yes Mild Indeterminate
2 Left frontal-temporal convexity Multilobular 60 × 58 × 55 Yes Mild Bone erosion of inner table
3 Right middle cranial fossa Multilobular 67 × 73 × 72 Yes None Bone erosion
4 Left frontal convexity Multilobular 50 × 47 × 51 Yes Mild Indeterminate, bone erosion
5 Right occipital-parietal parasagittal Multilobular 54 × 41 × 46 Yes Mild No
6 Right frontal parasagittal Oval 78 × 76 × 87 Yes Moderate No
7 Bifrontal, anterior cranial fossa Multilobular 102 × 72 × 61 Yes Mild Indeterminate
8 Right occipital-parietal convexity Multilobular 80 × 80 × 70 Yes Moderate Indeterminate, bone erosion
9 Bioccipital-parietal parasagittal Multilobular 116 × 66 × 50 Yes Moderate No


↵a Length × width × height.