Department of Neurosurgery;
Brain Research Institute;
Niigata University;
Niigata;
Japan;
Department of Pathology;
Brain Research Institute;
Niigata Uni-versity;
Niigata;
Japan;
Department of Radiology;
Niigata University Graduate School of Medical and Dental Sciences;
Niigata;
Japan;
Pituitary; Hemorrhage; Pituitary; Adenoma; Radiotherapy; Cyst; Giant;