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Angiographic features of gliosarcoma
AJNR. American Journal of Neuroradiology
|January 1, 1987
Summary
Gliosarcoma, a type of brain neoplasm, often presents with specific radiographic findings. Imaging reveals irregular tumor vessels, early venous drainage, and a distinct enhancing rim on CT scans.
Area of Science:
- Neuro-oncology
- Neuroradiology
- Pathology
Background:
- Gliosarcoma is an uncommon and aggressive primary brain tumor.
- Increasing recognition of gliosarcoma necessitates understanding its characteristic imaging features.
Purpose of the Study:
- To describe the radiographic findings of gliosarcoma in pathologically confirmed cases.
- To correlate imaging characteristics with pathological diagnosis.
Main Methods:
- Retrospective review of 14 pathologically proven gliosarcoma cases.
- Analysis of radiographic findings from angiography and computed tomography (CT).
Main Results:
- Angiography showed mixed dural/pial supply in 4/9 cases, with early venous drainage, irregular tumor vessels, and well-defined margins in most.
- CT demonstrated an irregular enhancing rim surrounding a necrotic center in all 14 cases.
- Lesions were predominantly peripherally located and invaded the dura.
Conclusions:
- Gliosarcoma exhibits distinct radiographic features on angiography and CT.
- Characteristic findings include peripheral location, dural invasion, irregular vascularity, and a rim-enhancing necrotic core.
- Radiographic analysis aids in the diagnosis and understanding of gliosarcoma.