Fig. 24.7a
 Microadenoma.
 T1-weighted coronal MR image (a) showing hypointense microadenoma in the left side of the pituitary. The mass causes a convex superior margin of the gland and displacement of the infundibulum to the right. Coronal CT (b) in a different patient with a microadenoma in the right side of the pituitary displacing the infundibulum to the left.