The CT manifestations of cerebral hemorrhage include, in the acute phase, the CT scan showing round or oval-shaped uniform high-density fresh hematoma with clear boundaries. It can determine the location, size, and shape of the hematoma, whether it has ruptured into the ventricle, and surrounding low-density edema. There are also effects of space-occupying lesions such as compression of the ventricles and brain tissue displacement, as well as obstructive hydrocephalus and other conditions where a large amount of blood in the ventricles contributes to high-density expansion. The hematoma's pressure on the surrounding brain tissue can lead to ischemia and commonly cause a characteristic ring-shaped low density due to edema around the hematoma.