Revised modified Dandy criteriaa
| Criteria |
|---|
| 1) If symptoms or signs are present, they may only reflect those of generalized intracranial hypertension or papilledema |
| 2) Documented elevated intracranial pressure measured in the lateral decubitus position |
| 3) Normal CSF composition |
| 4) No evidence of hydrocephalus, mass, structural, or vascular lesion on MRI or contrast-enhanced CT for typical patients, and MRI and MR venography for all others |
| 5) No other cause of intracranial hypertension identified |
↵a All of the above criteria should be met in order to make the diagnosis of IIH.