The lesion site had 53.4% of the cases of lesions located above the cerebellar tent, 42.2% of the cases were located below the cerebellar tent, and 4.4% of the cases had both above and below the tentacle, in 45 patients, there were 52 lesions, in which the most common lesion was in the frontal lobe 21.1%, the second was the pons 17.3%.