Type of incidentaloma |
Percentage |
Nonfunctioning adenomas |
55% |
Rathke cleft cysts |
14% |
Prolactinomas |
11% |
Other pituitary cysts |
5% |
Somatotropinomas (GH secreting) |
5% |
Craniopharyngiomas |
5% |
Corticotropinomas (ACTH secreting) |
2% |
Meningiomas |
2% |
Arachnoid cysts |
0.5% |
Other lesions |
0.5% |
ACTH, adrenocorticotropic hormone; GH, growth hormone. |