Acute cerebellar ataxia :   Is a sudden un-co-ordinated    muscle movement  to disease/injury of  cerebellum   May occur in children ,particularly younger than 3,lasts upto several days or weeks,after a viral infection .  Cause: viral infections( chickenpox, echovirus )    Other causes include:      Abscess of cerebellum.   Alcohol, medicine, insecticides or illicit drugs.  Bleeding into the cerebellum .  Multiple sclerosis .  Strokes of cerebellum.   Vaccination.   Trauma of head/neck  Para-neo-plastic disorders (certain diseases associated with specific cancers).    Symptoms:    Mainly trunk &limbs movements  are affected.   Dysarthria: clumsy speech pattern.   Nystagmus: repetitive eye movement;un-co-ordinated  eye movement.   Un-steady gaits: walking problems which may lead to fall.     Diagnosis:    The health care provider may ask:if the person has recently been sick.   Following tests may be needed:...