Chapter 187: Ataxic Disorders
CLINICAL PRESENTATION
CLINICAL PRESENTATION
CLINICAL PRESENTATION
Symptoms and signs may include gait impairment, visual blurring due to nystagmus, unclear (“scanning”) speech, hand incoordination, and tremor with movement. Differential diagnosis: Unsteady gait associated with vertigo from vestibular nerve or labyrinthine disease can resemble gait instability of cerebellar disease but produces a perception of movement, dizziness, or light-headedness. Sensory disturbances also can simulate cerebellar disease; with sensory ataxia, imbalance dramatically worsens when visual input is removed (Romberg sign). Bilateral proximal leg weakness also can rarely mimic cerebellar ataxia.
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