Glossoplegia in a small cortical infarction

We recently observed a patient with obvious contralateral tongue deviation with minimal lower facial paresis caused by a small cortical infarction confirmed by MRI. The small cortical lesion, causing obvious tongue deviation in our patient, was located lateral to the precentral knob which is known as a reliable anatomical landmark for the motor hand area. We were able to localise the cortical area for tongue movement to the most lateral part of the precentral gyrus lateral to the precentral knob. A 63-year-old, right-handed man with a 1 year history of hypertension suddenly developed dysarthria. He was alert, …