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Aqueductal stenosis

Case contributed by: Dr Frank Gaillard

From the case: Aqueductal stenosis

MRI brain - single image

Modality: MRI

T1

Midline sagittal T1 weighted image demonstrates marked hydrocephalus, with upward bowing and thinning of the corpus callosum, fenestration of the septum pellucidum and ballooning out of the third ventricular recesses. The superior part of the aqueduct is funnelled, whereas the distal part is stenosed.