MRI
Sagittal T1
Axial T2
Coronal FLAIR
Axial Gradient Echo
Axial DWI
Axial ADC
Coronal T1 C+
Axial T1 C+
- significant dilatation of all cerebral ventricles, transverse diameter of the third ventricle is 17 mm
- periventricular edema: band-like diffuse signal increase on T2-weighted and FLAIR images along the walls of lateral ventricles
- accented CSF flow signal void in aqueduct on T2-weighted axial images with dilatation of cerebral aqueduct. Lack of ventricular obstruction
- disproportional widening of basal and Sylvian CSF fissures and ventricles and narrowing of medial parasagittal fissures
- lack of deformation of the 3rd ventricle's floor, indicating normal interventricular pressure, pointing at "normal pressure hydrocephalus". Callosal angle is 74 degrees, Evans' index is 0.36
- no abnormal contrast enhancement, excluding meningeal and/or arachnoidal lesions, which may cause resorptive hydrocephalus
- incidental development venous anomaly with cavernous hemangioma in the right hemisphere of the cerebellum