| Characteristics | Hypophysitis | Adenoma |
| Related to pregnancy | Yes | No |
| First axe afected | Adrenal | Somatotropic |
| Volume | <6 cm3 | >6 cm3 |
| Gadolinum enhancement | High | Low |
| Symmetry | Symmetric | Asymmetric |
| Posterior pituitary bright | Conserved | Lost |
| Stalk size | Enlarged | Normal |