Common signs and symptoms of pineal gland tumors include nausea, double vision, vomiting and headache, American Brain Tumor Association states. The symptoms these tumors cause are largely due to their blockage of the flow of cerebrospinal fluid and their disruption of the nerve pathways that control eye movement.
The pineal gland sits at the center of the brain in a cavity filled with fluid and is responsible for secreting several hormones, according to American Brain Tumor Association. There are three types of tumors that form from the cells of the pineal gland, including pineoblastoma, pineocytoma and mixed pineal tumor. Pineoblastoma tumors grow faster and are more aggressive than pineocytoma tumors, and this affects how doctors treat the different types. Radiation therapy is the primary treatment for all pineal gland tumors, but for pineoblastoma tumors, doctors often apply the radiation to the entire brain and spinal cord. In some cases surgery is possible to remove part of the tumor and examine it. Surgeons may also surgically install a shunt to release a buildup of cerebrospinal fluid.
Pineal gland tumors are rare and make up less than 1 percent of tumors that originate in the brain, American Brain Tumor Association says. They are most common in adults between 20 and 40 years old.