Fig. 9.

Ectopic PitNET/pituitary adenoma (prolactinoma). A female patient in her 40 s, with an incidentally discovered tumor. The PRL level was at 4900 ng/mL which is markedly elevated. a Sagittal T2WI shows a mass in the base of the sella turcica (arrow). b Contrast-enhanced T1WI shows a pituitary gland contrasted flat above the mass (arrow). The contrast enhancement of the mass is weak compared to the pituitary gland. c Sagittal T2WI after 2 years of oral cabergoline shows tumor shrinkage and empty sella (arrow). PRL was 91 ng/mL and is nearly normal