Typical MR findings in IH

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High-signal-intensity lesions on T2-weighted MR images

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Presentation transcript:

Typical MR findings in IH Typical MR findings in IH. A, Midline sagittal T1-weighted image showing the “sagging brain” appearance with distortion of the anterior margin of the pons and medulla (black arrows) and decreased vertical dimension of the suprasellar cistern and sagging tub... Typical MR findings in IH. A, Midline sagittal T1-weighted image showing the “sagging brain” appearance with distortion of the anterior margin of the pons and medulla (black arrows) and decreased vertical dimension of the suprasellar cistern and sagging tuber cinereum (dashed arrow), as well as the prominent pituitary gland (white arrow). B, Axial T2-weighted image showing effacement of the perimesencephalic cistern (dotted arrows), as well as the elongated anteroposterior dimension of the midbrain. C, Axial T2-weighted gradient echo (susceptibility weighted) image showing small bilateral subdural effusions (short arrows) with a small amount of hemosiderin staining (arrowheads), indicating previous subdural hemorrhage. D, Gadolinium-enhanced axial T1-weighted image demonstrating diffuse pachymeningeal (dural) enhancement (open arrows). E, T1-weighted image through the approximated middle third of the dominant transverse sinus (located by dashed line in B). F, Magnified image of boxed area in E showing the convex inferior margin of the transverse sinus (curved arrow), that is, the VDS indicative of IH. R.I. Farb et al. AJNR Am J Neuroradiol 2007;28:1489-1493 ©2007 by American Society of Neuroradiology