A craniotomy and craniectomy are two types of surgeries that involve removing a flap of bone from your skull to reveal part of your brain. During a craniotomy, the flap of bone is replaced at the end ...

Retrosigmoid craniotomy is a surgical approach that can treat brain tumors, lesions, and other health conditions that affect the posterior fossa, an area at the back of the skull. Approaches like this ...

A supratentorial craniotomy is a surgery that involves temporarily removing a piece of bone in the skull to allow access to the brain. A person may have this surgery to treat tumors, bleeding, or ...