垂体瘤有多种,如按功能分类,则可分功能亢进组、减退组与无功能组。亢进组中最常见者为泌乳素瘤,其次为生长激素瘤,再次为混合瘤和促肾上腺皮质激素瘤,其余罕见的有促甲状腺激素瘤、促性腺激素瘤和β-内啡肽瘤。功能低下组大都由于腺瘤压迫正常细胞所致, There are many pituitary tumors, such as functional classification, can be divided into functional hyperthyroidism group, subgroup and non-function group. The most common cases of hyperinvolution were prolactinoma, followed by growth hormone tumors, again mixed tumors and adrenocorticotropic hormone tumors, and the remaining rare thyroid stimulating hormone tumors, gonadotrophins, and β-endorphin tumors. Most of the dysfunctional groups were caused by adenomas pressing normal cells.