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Date Published: 14/07/2026
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DOI: https://doi.org/10.55046/vjrnm.62.1570.2026
Issue
No. 62 (2026)
Section
Scientific research
How to Cite
Tạ, H. N., Thiều, M. C., & Ngô, L. L. (2026). MRI FEATURES OF INTRACRANIAL SOLITARY FIBROUS TUMORS: A SERIES OF 9 CASES. Vietnamese Journal of Radiology and Nuclear Medicine, 62, 38-44. https://doi.org/10.55046/vjrnm.62.1570.2026

MRI FEATURES OF INTRACRANIAL SOLITARY FIBROUS TUMORS: A SERIES OF 9 CASES

Tạ Hồng Nhung1, , Thiều Mạnh Cường2, Ngô Lê Lâm3
1 Bệnh viện K
2 Trung tâm Giải phẫu bệnh và Sinh học Phân tử - Bệnh viện K
3 Trung tâm Chẩn đoná hình ảnh - Bệnh viện K

Main Article Content

Abstract

Objective: To describe MRI features of intracranial solitary fibrous tumors (IUXĐĐNSs). Methods: A retrospective case series of 9 histopathologically confirmed IUXĐĐNS patients who underwent 1.5T brain MRI (T1W, T2W, FLAIR, DWI, post-gadolinium T1W). Morphology, signal intensity, dural attachment characteristics, enhancement pattern, DWI restriction, and relative ADC (rADC = ADC min/normal white matter ADC) were evaluated. Results: Mean age 49.2 ± 11.9 years; female/male = 6/3. All 9 tumors were extra-axial dural-based, mean diameter 58.0 ± 9.6 mm. Key findings: narrow dural attachment 100% (base-to-diameter ratio 0.61 ± 0.13); lobulated contour 77.8%; characteristic T2W internal low-signal lines 77.8%; intense enhancement 100% (heterogeneous 55.6%); flow void 77.8%; DWI restriction 55.6%; mean rADC 1.012 ± 0.278, decreasing with WHO grade (grade I: 1.174; grade II: 0.853; grade III: 0.606). No calcification or hemorrhage. Conclusion: The characteristic of narrow dural attachment, lobulated morphology, and flow void, combined with rADC, provides valuable MRI criteria for differentiating IUXĐĐNS from meningioma.

Keywords

Intracranial solitary fibrous tumor, MRI, narrow dural attachment, rADC, DWI.

Article Details

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