NeuroradiologyGranulomatous hypophysitis
chronic inflammatory disease of the
pituitary gland caused by tuberculosis, syphilis,
sarcoidosis and histiocytosis; it may also be idiopathic. Histologically giant cell granulomas are found.
It presents with symptoms of hypopituitarism and an expanding sellar and suprasellar mass.
Radiologically there is no specificity and a differential diagnosis must be made with pituitary space-occupying lesions, mainly adenomas, and lymphocytic hypophysitis (see hypophysitis lymphocytic).
GS