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. 2019 Feb 18;76(5):580–587. doi: 10.1001/jamaneurol.2018.4921

Figure 1. Illustration of Typical Findings on Brain Magnetic Resonance Imaging in Intracranial Hypotension.

Figure 1.

A, Coronal illustration of the brain demonstrating normal findings. B, Coronal illustration of the brain with typical findings in a patient with a spinal cerebrospinal fluid leak with venous engorgement of the superior sagittal sinus (arrowhead 1), pachymeningeal enhancement (arrowhead 2), superficial siderosis (arrowhead 3), enlarged pituitary gland (arrowhead 4), prominent intercavernous sinus (arrowhead 5), effaced suprasellar cistern (arrowhead 6), and subdural fluid collection (arrowhead 7). C, Sagittal illustration of the posterior fossa demonstrating normal findings. D, Sagittal illustration of the posterior fossa with typical findings in patients with a spinal cerebrospinal fluid leak with effaced suprasellar cistern (arrowhead 8; pathologic ≤4 mm), effacement of the prepontine cistern (arrowhead 9; pathologic ≤5 mm), decreased mamillopontine distance (arrowhead 10; pathologic ≤6.5 mm), and low-lying cerebellar tonsils (arrowhead 11).