In the later stages of parkinson's disease the patient showed

a mask-like facial expression and shuffling gait.

Explanation:

Parkinson's disease is marked by the progressive degeneration of neurons that produce the neurotransmitter dopamine, closely related to the domain of body movements. This process of destruction of nerve cells occurs in various parts of the brain and generates, in most cases, symptoms such as muscle stiffness and involuntary tremors. However, they are not always the ones who denounce the picture. There are parkinsonians who never have this symptom - and it is worth clarifying that the tremors can be a sign of other problems.

However, it is common for patients in the later stages of Parkinson's disease to have a mask-like facial expression and shuffling gait.