Rep. Greg Murphy (R-NC) announced on Tuesday that he has been diagnosed with a skull tumor and will undergo surgery to have it removed.

Murphy, a doctor himself, said he has the “utmost faith in my physicians and surgeons” to remove the tumor, which is called a pituitary macroadenoma. Though it is thought to be benign, the size and “subsequent ability to affect vital structures” of the brain requires surgical removal, the North Carolina congressman said.