Case 170 Answers

Basic Human Neuroanatomy

A Clinically Oriented Atlas

Case 170 Answers

1. Involvement of which pathways account for the patient’s findings on sensory examination?

Fasciculus gracilis bilaterally

2. What accounts for this patient’s difficulty with speech? What is the term that describes her speech pattern?

Predominantly, cerebellar dysfunction. Scanning dysarthria

3. Involvement of which structures account for the findings on cerebellar examination?

Predominantly, neocerebellar (corticocerebellar) and spinocerebellar dysfunction. Cerebellar vermis, paravermal hemisphere, and lateral hemisphere bilaterally

4. What accounts for this patient’s gait disorder?

Cerebellar ataxia

5. This patient’s illness constitutes a classic neurologic syndrome. What is the name of this syndrome?

Olivopontocerebellar degeneration or atrophy (OPCA)

6. In general, what type of pathologic process is involved in this case?

Degenerative, genetic, autosomal dominant

7. What diagnostic procedure(s) would you undertake at this point?

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