70Y Female patient. Previous history of surgery for ? brain tumor (details not available).
Sagittal T1 weighted images above are showing a T1 hyperintense lesion in the quadrigeminal cistern. Right parasagittal image is showing a convexity meningioma (green arrow). Blue arrow points to the previous occipital craniectomy defect.
T1 WI axial image shows the hyperintense lesion in the quadrigeminal plate cistern. The Susceptibility Weighted Images (SWI) showed hypointense blooming artifacts, more along the rim of the lesion.
Lesion is appearing hyperintense in T2WI, suppressed in T2 FS FLAIR images.
The patient also has associated absent septum pellucidum.
The right superior parietal convexity meningioma is noted with mass effect on the parietal lobe (Green arrow). Orange arrow points to the absence of septum pellucidum.
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