Sagittal T2 conventional MR image in a 50-year-old patient admitted for recent gait and urinary dysfunction, with a medical history of chronic headaches.

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Presentation transcript:

Sagittal T2 conventional MR image in a 50-year-old patient admitted for recent gait and urinary dysfunction, with a medical history of chronic headaches. Sagittal T2 conventional MR image in a 50-year-old patient admitted for recent gait and urinary dysfunction, with a medical history of chronic headaches. Note the dilated lateral and 3rd Vs associated with a comparatively small 4th V. There is a slight downward bulging of the floor of the 3rd V, but no direct signs of obstruction at the aqueductal level. PC-MR imaging (not shown) showed a total absence of CSF flow at the aqueductal level and helped the neurosurgeon with the diagnosis of aqueductal stenosis. S. Stoquart-El Sankari et al. AJNR Am J Neuroradiol 2009;30:209-214 ©2009 by American Society of Neuroradiology