A 56-year-old right-handed woman states that her right hand shakes when she tries to open a door. Her physician does not observe a tremor when the patient's hands are resting in her lap. She further states that she falls frequently, usually to the right side. The most likely cause of these findings is a lesion in the:

Question

Quizplus · Accepted Answer

The symptoms described, including a tremor that occurs with movement (action tremor) and frequent falls to one side, suggest a problem with coordination and balance. These are functions primarily controlled by the cerebellum. Since the symptoms are on the right side of the body, the lesion would most likely be in the right cerebellum, as cerebellar pathways do not cross (decussate) to the opposite side of the body.

A 56-Year-Old Right-Handed Woman States That Her Right Hand Shakes