Article Figures & Data
Figures
- Fig 1.
Patient 3. Hemangiopericytoma with peripheral calcification and bone erosion. A, Axial CT examination shows a mass over the right middle cranial fossa with upward extension to the temporal lobe. The mass shows mixed low, iso-, and high attenuation with peripheral calcification. B, Axial CT (bone window) shows destruction of right temporal bone and lateral wall of right orbit.
- Fig 2.
Patient 6. Anaplastic hemangiopericytoma with narrow-based dural attachment and AVM-like features. A, Axial CT examination shows a mass located in the right frontal parasagittal convexity. The mass shows mixed low and isoattenuation with moderate surrounding edema. B and C, Mass shows mixed hypo-, iso-, and hyperintensity with AVM-like signal intensity flow voids on precontrast axial T2 and T1-weighted images. D, Mass shows marked and heterogeneous enhancement with narrow-based dural attachment on postcontrast axial T1-weighted images but lacks the “dural tail” sign.
- Fig 3.
Patient 9. Hemangiopericytoma with the “dural tail” sign. A, Mass shows mixed hypo-, iso-, and hyperintensity on precontrast axial T2-weighted images. B, Mass shows marked and heterogeneous enhancement with narrow-based dural attachment on postcontrast axial T1-weighted images and shows the “dural tail” sign.
Tables
- Table 1:
Demographics, surgery, follow-up, and pathology of 9 patients with hemangiopericytoma
Patient Sex Age (yr) Blood Loss (mL) Duration of Symptoms (mo) Symptoms Extent of Tumor Removal Postoperative Radiotherapy (Gy) Follow-Up (mo) Local Recurrence Metastases Pathology 1 M 3 400 0.5 Seizures CR None 95/a No No AH 2 F 18 1000 0.5 Headache CR 60 39/a No No AH 3 F 10 4000 6 Headache CR 60 36/a No No H 4 F 17 1000 0.5 Headache CR 60 29/a No No AH 5 M 3 350 0.3 Headache CR None 27/a No No AH 6 M 7 2000 12 Seizures CR 60 16/a No No AH 7 M 17 13,000 3 Headache CR 60 12/a No No AH 8 M 5 300 1.5 Headache CR 60 8/d Yes No AH 9 F 18 9000 12 Headache SR 60 2/a No No H -
a indicates alive; d, dead; CR, complete resection; SR, subtotal resection; AH, anaplastic hemangiopericytoma; H, hemangiopericytoma
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Patient Location Shape Sizea (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.
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