Obstructive hydrocephalus due to aqueduct stenosis with secondary intracranial hypertension
Diagnosis almost certain
Presentation
Chronic headaches with bilateral papilledema.
Patient Data
Age: 35 years
Gender: Male
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_pin":false},"extraPropsURL":"/studies/99247/annotated_viewer_json?lang=us"}
The MRI sequences demonstrate:
- dilatation of the 3rd and lateral ventricles with mild transependymal edema. The sagittal FIESTA shows aqueduct stenosis (web/diaphragm) with normal size and configuration of the 4th ventricle
- Signs of secondary intracranial hypertension
- vertical tortuosity of the optic nerves
- prominent subarachnoid space around the optic nerves
- bilateral flattening of the posterior sclera
- mild enlargement of the Meckel cave
Case Discussion
MRI features of obstructive hydrocephalus due to aqueduct stenosis (web/diaphragm) with secondary intracranial hypertension.