Craniotomy was performed, a skull was removed, and CT was examined one month later, and the third and fourth ventricles were enlarged. How's it going?

This situation may have the possibility of hydrocephalus.

Check the head CT every month and follow up.

If the ventricle continues to expand, and there are bad situations such as slow speech, ventriculoperitoneal shunt should be performed.

Some people have static hydrocephalus, that is, it will neither increase nor disappear. Don't worry, just pay attention to reexamination.