1. Do the findings on the right side of the body indicate an upper motor neuron or lower motor neuron lesion?
2. Do the findings involving the left side of the face indicate an upper motor neuron or lower motor neuron lesion?
3. Considering the entire clinical picture, what specific structure(s) is (are) involved to produce the patient’s left facial weakness?
4. Considering the entire clinical picture, what specific structure(s) is (are) involved to produce the patient’s mild right hemiparesis, hyperreflexia, and extensor plantar reflex?
5. Where is this patient’s neurological lesion located?
6. In general, what type of pathologic process was involved in this case?
Vascular. Ischemic infarct of the left lower pons due to occlusion of one or more of the penetrating (pontine) branches of the basilar artery.
7. What diagnostic procedure(s) would you undertake at this point?