<unk>  is a benign, slowly growing pineal parenchymal tumor. The pineal gland, in the brain secretes melatonin which regulates sleep cycle .<unk> s most often occur in adults as a solid mass, although they may appear to have fluid-filled (cystic) spaces on images of the brain. Signs and symptoms of<unk> s include headaches, nausea, vision abnormalities, and Parinaud syndrome.<unk> s are usually slow-growing and rarely spread to other parts of the body. Treatment includes surgery to remove the<unk> ; most of these tumors do not regrow (recur) after surgery.
Pineocytoma
Oncocytoma
Brown tumor
Myxoma
Glomus tumor
Neuroma
Adrenal myelolipoma
Ameloblastoma