This is a report of 24-year-old male with chromophobic pituitary adenoma which was confirmedhistopathologically in autopsy. The chromophobic pituitary adenoma is the most common type of pituitary tumor, andelaborates no specific hormone. The effects are simply caused by pressure of the expanding growth. Careful historytaking, physical examination, radiological examination and histopathological study revealed typical chromophobicpituitary adenoma.