Idiopathic intracranial hypertension: Imaging and clinical fundamentals

Figure 14  Inferior position of cerebellar tonsils. A: For reference, a coronal fluid-attenuated inversion recovery image is provided, which displays normally positioned cerebellar tonsils above the level of the foramen magnum (*), as indicated by the dashed line; B: Coronal fluid-attenuated inversion recovery image demonstrates only mild ectopic localization of the inferior part of the cerebellar tonsils, just below their expected level (dashed line) and through the foramen magnum (*).