Damage to which area of the brain is most likely to have produced the gaze palsy in a patient with hemiparesis?

Get ready for the MRCP Exam with our quiz. Study with flashcards, multiple choice questions, hints, and explanations. Prepare for your exam effectively!

The gaze palsy observed in a patient with hemiparesis is most closely associated with damage to the right frontal lobe. This area of the brain is involved in regulating eye movements and coordinating gaze, particularly in directing gaze towards the side opposite to the hemisphere that is affected. In a patient with hemiparesis due to a right-sided lesion, the left side of the body would be weak, and this can manifest as a gaze preference towards the side of the lesion or, in some cases, a complete gaze palsy.

The right frontal lobe houses structures such as the frontal eye fields, which play a crucial role in voluntary eye movements and are critical for the coordination of gaze. Damage to these areas can lead to difficulties in moving the eyes in a coordinated manner, resulting in a gaze palsy where the patient may have a restricted gaze direction, often favoring the side that is unaffected.

In contrast, damage to areas like the left medulla oblongata or the left occipital lobe would be less directly associated with controlling gaze direction. The left frontal lobe would affect the right side of the body but would primarily influence motor functions rather than gaze control, making it an unlikely cause of the discussed gaze palsy. Therefore

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy