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This brain tumor forms in or around the pineal gland, a tiny organ near the center of the brain responsible for producing melatonin. Pinealomas can be benign or malignant. There are three types: pineocytomas, pineoblastomas, and pineal germinomas. Symptoms include headache, ...

Pineal cyst is a fluid-filled mass in the pineal gland, a small endocrine gland near the center of the brain. It is one of the most common cysts found in the brain.  It rarely produces neurological problems, but symptoms can occur, including headache, difficulty looking up, ...

These tumors, most commonly found in children, grow in the pineal region of the brain where melatonin is created—the hormone responsible for regulating sleep. They are rare and less predictable than other pineal region tumors, ranging from benign growths with clearly defined ...

Pineal region tumors often affect the tiny pineal gland at the base of the brain that makes melatonin – the sleep hormone. The tumors are more common in children. About 20 percent of these growths are benign, but 80 percent are malignant. Symptoms include abnormal eye moveme ...

Pineoblastoma is a rare, aggressive, malignant tumor that emerges in or near the pineal gland, a small endocrine gland near the center of the brain. The endocrine gland secretes hormones into the bloodstream.  Unlike other similar tumors, pineoblastoma can spread through the ...

Pineocytoma is a rare, slow-growing tumor that emerges in or near the pineal gland, a small endocrine gland close to the center of the brain that secretes hormones into the bloodstream.  These tumors often produce fluid build-up and pressure on the brain. They are most commo ...

Pituicytoma is a rare brain tumor that grows out of the pituitary gland at the base of the brain just behind the eyes. They are often discovered in an MRI performed for another reason. These tumors grow very slowly and produce mild symptoms often assumed to be connected to a ...

Pituitary adenoma is a tumor that occurs in the pituitary gland, the pea-sized organ in the center of the brain and just above the back of the nose. Pituitary adenomas are benign, slow-growing masses. Women are affected more often than men, particularly during childbearing y ...

Pituitary apoplexy occurs when a pituitary tumor at the base of the brain spontaneously bleeds into or blocks blood supply to the pituitary gland. The condition is rarely life threatening, but can cause sudden onset of a severe headache, nausea and vision loss. Best in Care ...

Pleomorphic xanthoastrocytoma (PXA) is a rare and benign brain tumor most frequently found in children and teenagers. The average age of diagnosis is 12. PXAs grow in cells throughout the central nervous system that support brain function. These tumors grow slowly and do not ...