<unk>  is both a symptom and a sign in neurology. It is a form of<unk>  (loss of coordination) caused not by cerebellar dysfunction but by loss of<unk>  input into the control of movement.<unk>  is distinguished from cerebellar<unk>  by the presence of near-normal coordination when the movement is visually observed by the patient, but marked worsening of coordination when the eyes are shut, indicating a positive Romberg's sign.Sensory<unk>  also lacks the associated features of cerebellar<unk>  such as pendular tendon reflexes, scanning dysarthria, nystagmus and broken pursuit eye movements. Patients with<unk>  often demonstrate pseudoathetosis and Romberg's sign. They usually complain of loss of balance in the dark, typically when closing their eyes in the shower or removing clothing over the head. __TOC__
Sensory ataxia
Locomotor ataxia
Myopathic gait
Parkinsonian gait
Hemiparesis
Pyramidal signs
Ophthalmoparesis
Facial weakness