This study examines a description of pituitary tumors considering an anatomopathological casuistic. The study of the tumors of the Central Nervous System (CNS) include the pituitary gland, located in the sella turcica. The pathology of the sellar region is represented by the adenomas, tumors of slow development with or without endocrine secretion, that usually involve the population of young adults. The aim of this report, was to describe the casuistic of the " J. Fernandez Hospital" between the years 2000 through 2017. A retrospective review was performed and 234 samples of the sellar region were processed. Mean age was 42 years with a range of 17 to 77 years. Sex distribution was 57% women and 43 % men. Of these, 77% of the cases resulted adenomas. The conclusions obtained in the study are detailed.