Acute cerebellitis MRI

A 18 yo male with fever, giddiness and ataxia since 3wks. Now complaining vomiting and headache. On admission MRI Brain and Diffusion show diffuse T2 high signals involving cerebellar hemispheres with marked parenchymal swelling, causing compression over Pons and Mid brain with obstructive hydrocephalus. 

Imaging diagnosis : Acute cerebellitis

Csf evaluation revealed pleocytosis to support the diagnosis.

Acute cerebellitis also known as acute cerebellar ataxia, an inflammatory syndrome of cerebellar dysfunction.

Can be Infectious, post-infectious, or post-vaccination.

Typically seen in children, adult cases are also known. 
Outcome of cerebellitis in young adults is considered quite favourable compared to children. 

Acute Cerebellitis MRI

A 31 y o male with occipital headache since 3 weeks followed by progressive ataxia.
On admission MRI Brain, Diffusion and FLAIR images.

This MRI study of Brain shows diffuse faint high signals involving cerebellar hemispheres on DW images with parenchymal swelling on FLAIR.
Csf evaluation revealed pleocytosis.

Imaging diagnosis : Acute Cerebellitis.

Acute Cerebellitis

Also known as Acute Cerebellar Ataxia.
An Inflammatory syndrome of cerebellar dysfunction.
Infectious, post-infectious, or post-vaccination.
Typically seen in children, adult cases are also known.
Outcome of Cerebellitis in young adults is considered quite favorable compared to children.