Pituitary tumors, i.e., tumors originating in the pituitary gland, are often located near the pituitary gland and can be classified as in-saddle, out-saddle, and ectopic tumors based on their location.
Pituitary tumors are defined as tumors that originate in the adenopituitary gland and grow primarily in the vicinity of the pituitary gland. Broadly defined, pituitary tumors also include tumors originating from the neuropituitary gland and residual squamous epithelial cells of the craniopharyngeal duct.
The pituitary gland is a small gray-red oval body surrounded by a connective tissue peritoneum and divided into the adenopituitary gland and the neuropituitary gland. The pituitary gland is located in the pituitary fossa of the pyriform saddle at the base of the skull, and according to the location of the tumor in relation to the pyriform saddle, it can be divided into in-saddle and out-saddle. In addition, some pituitary tumors may grow ectopically in other parts of the body, but it is relatively rare.
It is recommended that patients suffering from pituitary tumors should seek medical treatment in time, and actively diagnose and treat the tumor under the doctor’s guidance, so as to avoid delaying the condition.