Findings
- Patchy T2/FLAIR hyperintensity involving gray and white matter in both cerebellar hemispheres with associated cerebellar swelling and partial effacement of the fourth ventricle
- Descent of the bilateral cerebellar tonsils into the foramen magnum with mass effect on the upper cervical spinal cord
- Enlargement of the lateral and third ventricles with periventricular T2/FLAIR hyperintensity
- Thin diffuse pial enhancement along the surface of the cerebellum
- No evidence of acute infarct or hemorrhage
Diagnosis
Cerebellitis
Sample Report
Findings consistent with acute cerebellitis with associated cerebellar swelling resulting in mass effect on the fourth ventricle and bilateral cerebellar tonsillar herniation.
Obstructive hydrocephalus with enlargement of the lateral and third ventricles with transependymal edema. Recommend urgent neurosurgical evaluation.
Thin diffuse pial enhancement along the surface of the cerebellum may be directly related to cerebellitis or a secondary effect of cerebellar edema and vascular congestion.
No evidence of acute infarct or hemorrhage.
Discussion
References