Pontomesencephalic angle

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The pontomesencephalic angle has been described as an useful adjunct in the imaging diagnosis of intracranial hypotension. A normal value is 65˚ +/- 10˚, and a value less than 50˚ is suggestive of intracranial hypotension .

Radiographic features

MRI
  • angle between two lines drawn along
    • anterior margin of the midbrain
    • anterosuperior margin of the pons