Large-fiber sensory neuronopathy in autosomal dominant spinocerebellar degeneration.

Autosomal dominant hereditary ataxias are heterogeneous groups of disorders in which cerebellar ataxia and pyramidal, extrapyramidal, and extraocular signs predominate. We studied a family with this type of disorder with evidence supporting a large-fiber sensory neuronopathy. Electrophysiologic, histologic, radiologic, and biochemical features were studied. Neuropathic features of some forms of autosomal dominant spinocerebellar degeneration are, therefore, believed to be due to a ganglioneuropathy similar to that described in Friedreich's ataxia.

Supportive therapy in radiation oncology.

Measures for supportive care of the radiation therapy patient are presented. These include emotional support prior to and during the course of therapy facilitated by a written interview that allows the radiation oncologist to be a supportive communicator of realistic information. A discussion is made of the support of body tissues affected by combination radiation and chemotherapy. These tissues usually include skin, oral, esophageal and intestinal mucosa, and teeth. Means of maintaining nutritional support following weight loss of patients during therapy are described.