1) Endocrine neoplasium 
Pineocytoma, also known as a pinealocytoma, is a benign, slowly growing tumor of the pineal gland. Unlike the similar condition pineal gland cyst, it is uncommon. ==Diagnosis== Pineocytomas are diagnosed from tissue, i.e. a brain biopsy. They consist of: Pineocytomatous/neurocytic rosettes are superficially similar to Homer-Wright rosettes; howeve...
A slow growing type of brain tumor that occurs in or around the pineal gland, a tiny organ near the center of the brain.
A type of brain tumour. ... (12 Dec 1998) ... 
Type: Term Pronunciation: pin′ē-ō-sī-tō′mă Definitions: 1. A tumor arising in the pineal gland that resembles normal pineal parenchyma.
Pineocytoma: An uncommon slow-growing tumor of the pineal gland. Symptoms include hydrocephalus, paralysis of upward gaze, gait disturbances, and precocious puberty. Also known as a pinealocytoma or pinealoma.