Case Notes
History
61 yo male who presented at outside hospital with a possible lumbar abscess; Rx with antipiotics. Imaging revealed hydrocephalus and lumbar arachnoiditis and subacute meningitisExam
MR flair
Prior Study
Axial noncontrast head CT1. Bilateral symmetric cerebellar edema producing obstructive hydrocephalus and moderate upward transtentorial herniation. The basis for the cerebellar swelling is indeterminate without additonal MR sequences including a post contrast T1-w study.
2. There is grade 1.6/4 obstructive hydrocephalus.
3. Elevated CSF pressure has produced optic hydrops
Sagittal post contrast T1-w MR
1. Status post ventriculostomy placement with significant reduction in ventricular size (now grade 1.2/4).
2. Persistent, possibly increased central, upward, transtentorial herniation.
3. Persistent cerebellar edema without intercurrent hemorrhage.