Membranous obstruction of Magendie's foramen

Case contributed by Ayaz Hidayatov
Diagnosis certain


The pediatric patient presented with a severe headache and intracranial hypertension symptoms.

Patient Data

Age: 10 to 15 years
Gender: Female

MR demonstrates marked dilatation of fourth, third and lateral ventricles, without trans-ependymal edema. Midsagittal thin slices T2DRIVE images show membranous occlusion at the level of the foramen of Magendie.

Case Discussion

Non-communicating hydrocephalus due to membranous obstruction of Magendie's foramen is a rare condition. In this case, the patient has a history of bacterial meningitis a few years ago and probable cause of membranous occlusion is a sequela of arachnoiditis.

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