Meningioma with high T2 signal

Case contributed by Frank Gaillard
Diagnosis probable


Vague headaches for investigation.

Patient Data

Age: 45 years
Gender: Male

Extra axial homogeneously enhancing mass lesion with dural tail is seen overlying the right frontal cerebral convexity. It has very high T2 signal. No adjacent hyperostosis or bony change; no edema. 

Case Discussion

These selected images of a meningioma demonstrate how vessels coursing through the subarachnoid space can help confirm that the mass is extra-axial. The high T2 signal nature of this meningioma is not typical, but seen in a number of histological variants, particularly secretory meningiomas, angiomatous meningiomas, chordoid meningiomas and microcystic meningiomas. Absent adjacent edema makes secretory meningioma less likely. 

Unfortunately pathological proof is unavailable, however I believe this was confirmed. 

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