Fig. 3

Endoscopic transsphenoidal surgery to remove a pituicytoma. a. The saddle bottom was successfully exposed, and the bone structure of the saddle bottom was smoothed. b. Opening the bottom of the saddle to expose the tumor. The tumor is red, the blood supply is rich, and it is adjacent to the optic nerve. c. The tumor was successfully removed, and the optic nerve was well protected. d-f. Histopathological examination of the pituicytoma specimen. g. Kaplan-Meier survival curve showing the effects of tumor gross total resection (GTR) and subtotal resection (STR) on progression-free survival (PFS) in patients (Chi square = 5.621, P < 0.05). All scale bars = 100 μm