2558 HN,58-2030 VN 237s-58 MRI MRA Brain & Cranial Nurvus sice axial and coronal TIWFsd+Gd, T2WFS the base skull, 3GTOF contras enhanced MRA of brain and neck FINDINGS: shows a well-defined homogeneous enhancing solntensiy T1W iso. The study 2.8x2.2x2.3 cm iri AF aw lesion with trig respecitely. Minimal ventricle, ene edema at the hypointersity trarsverse and vertical dimensions, Multiple region is seen T2WFLAIR charges at bilateral periventricular periventrlcuar white matter hyperintensity suggestive of non peafic or mild to moderate degre of small vessel disease. hydrocephalus or brain herniation is seen intracranial hemorrhage, No acute infarction The detail study of the skull base shows normal marrow signal intensity Rotundum (v2 daubution enhancement along right foramen There is abnormal thicken along retraclival enhancement pachymeningel or rigth CN v), and thicken enhancement or focal mass atong the clstemal segment of visual zed No abnormal cranial nerves are found. The remaining neural foramina are within normal limit. Multiple mucous retention cysts at right makillary and right ethmoid sinuses are seen remaining paranasal sinuses and the mastod air-cells are unremarcable The nasapharynx, at basilar artery and blateral PCAs. Moderate stenoss ACAs and intracranial segment of bilateral vas are The MRA shows severe irregular irregular stenosis at bllateral MCAs, bilateral dynamically significant stenosis at also noted The neck vessels is also normal. No bilateral carobd bifurcations and remaining vertebral arteries. IMPRESSION: intraventricular mass at right lateral ventricle, meningioma is most likely. Ddx gloma or An metastasis Rotundum and retroclival enhancement at right foramen disease or metastasis Abnarma granulomatous meningitis, stenosis could be atherosclerotic pachy irregular pseudotumor disease MRA: multifocal (19 nm) Pats. Kwankaew, M.D. 13/04/2553