SCAs may manifest with these symptoms if there is involvement of the described spinal structures. Peripheral neuropathy (ataxic neuropathy) can also be seen in various forms of SCA; however, cerebellar symptoms should be present [81]. The combination of cerebellar ataxia and sensory neuropathy, both of which can contribute to symptoms of disequilibrium, has also been described in cerebellar ataxia with neuropathy and bilateral vestibular areflexia syndrome [85]. In these cases, neuroimaging is primarily directed at evaluating the coexisting central abnormalities of the cerebellum and brainstem (see Variant 6). There are also several known autoimmune sensory ataxic neuropathies, which result in symptoms of disequilibrium without cerebellar or brainstem involvement. Diagnostic confirmation of these neuropathies is generally via clinical evaluation and electrodiagnostic testing; however, targeted US has also been used to detect changes in size of the affected nerve in a small study [86]. Most of the studies in patients with SCA involve a small number of patients due to the rarity of the disease and particular mutations. CT Head With IV Contrast There is no relevant literature regarding the use of CT head with IV contrast in the evaluation of sensory ataxia. CT Head Without and With IV Contrast There is no relevant literature regarding the use of CT head without and with IV contrast in the evaluation of sensory ataxia. CT Head Without IV Contrast There is no relevant literature regarding the use of CT head without IV contrast in the evaluation of sensory ataxia. CT Temporal Bone With IV Contrast There is no relevant literature regarding the use of CT temporal bone with IV contrast in the evaluation of sensory ataxia. CT Temporal Bone Without and With IV Contrast There is no relevant literature regarding the use of CT temporal bone without and with IV contrast in the evaluation of sensory ataxia.
Dizziness and Ataxia. SCAs may manifest with these symptoms if there is involvement of the described spinal structures. Peripheral neuropathy (ataxic neuropathy) can also be seen in various forms of SCA; however, cerebellar symptoms should be present [81]. The combination of cerebellar ataxia and sensory neuropathy, both of which can contribute to symptoms of disequilibrium, has also been described in cerebellar ataxia with neuropathy and bilateral vestibular areflexia syndrome [85]. In these cases, neuroimaging is primarily directed at evaluating the coexisting central abnormalities of the cerebellum and brainstem (see Variant 6). There are also several known autoimmune sensory ataxic neuropathies, which result in symptoms of disequilibrium without cerebellar or brainstem involvement. Diagnostic confirmation of these neuropathies is generally via clinical evaluation and electrodiagnostic testing; however, targeted US has also been used to detect changes in size of the affected nerve in a small study [86]. Most of the studies in patients with SCA involve a small number of patients due to the rarity of the disease and particular mutations. CT Head With IV Contrast There is no relevant literature regarding the use of CT head with IV contrast in the evaluation of sensory ataxia. CT Head Without and With IV Contrast There is no relevant literature regarding the use of CT head without and with IV contrast in the evaluation of sensory ataxia. CT Head Without IV Contrast There is no relevant literature regarding the use of CT head without IV contrast in the evaluation of sensory ataxia. CT Temporal Bone With IV Contrast There is no relevant literature regarding the use of CT temporal bone with IV contrast in the evaluation of sensory ataxia. CT Temporal Bone Without and With IV Contrast There is no relevant literature regarding the use of CT temporal bone without and with IV contrast in the evaluation of sensory ataxia.