Expert Opinion :
This child presented with poor head control and wobbling with not able to maintain his balance which the parents took as weakness of the limbs. However, on examination, he has ataxia and power is alright. His deep tendon reflexes in lower limbs are sluggish though superficial reflexes are present. All this is just suggestive of cerebellar ataxia and no paraplegia or hemiplegia. The cause of his cerebellar ataxia could be a viral infection as he did have a maculopapular rash 15 days prior to this episode. Thus, the child could have had a post infectious acute cerebellitis which is a benign condition and improves on its own. It is commonly seen following chickenpox. No treatment is required and investigations in form of neuroimaging will be normal. Since this child presented with weakness and sluggish lower limb reflexes, extensive workup for ADEM, transverse myelitis and GBS was done, but the causes were overruled. Thus, all investigations were normal and acute cerebellitis improved on its own. This just highlights need for a proper clinical history and examination to prevent unnecessary investigations