All are true about gait ataxia except?
A. Occurs in cerebellar vermis lesions
B. May be the presenting feature of benign intracranial hypertension
C. Is a presenting sign of cerebellar ectopia
D. Occurs as a feature of carbamazepine toxicity
A. Occurs in cerebellar vermis lesions
B. May be the presenting feature of benign intracranial hypertension
C. Is a presenting sign of cerebellar ectopia
D. Occurs as a feature of carbamazepine toxicity
Ans.
B. May be the presenting feature
of Lesions in one or other cerebellar
hemisphere usually cause peripheral limb ataxia e.g. ‘finger to nose
ataxia’. rather than ataxia of gait
which is a feature of central cerebellar vermis. lesions. Gait ataxia is associated with
normal pressure hydrocephalus not benign intracranial hypertension. Cerebellar
ectopia may present with a combination of gait ataxia and nystagmus often
down beating vertically. . Gait ataxia and other cerebellar signs are features
of alcohol and anticonvulsant including carbamazepine. toxicity
