T 1 T2 signal with a length of 0.5cm*0.7cm was seen in the left thalamus, and the boundary was clear. Excuse me, is this serious?

This is the focal cerebral infarction in the left thalamus. Because the focus is very small, only 0.5-0.7cm, belonging to lacunar cerebral infarction with clear boundaries, the diagnosis should be: old lacunar cerebral infarction (left thalamus), often without any specific symptoms, accompanied by numbness and/or pain in the right limb. If there are other symptoms, it has nothing to do with this lesion.