Lymphocytic hypophysitis in males.

Lymphocytic hypophysitis (LH) is a rare inflammatory disorder of the pituitary gland that typically affects women in the peripartum period. We describe two male patients (ages 43 years and 36 years), who presented with headaches, visual disturbance and hypopituitarism. MRI revealed a heterogeneous pituitary lesion that extended into the suprasellar region and with a thickened pituitary stalk. In both patients a histopathological diagnosis of LH was made after endoscopic transsphenoidal surgery. LH in males, although rare, should be considered as a differential diagnosis in those with hypopituitarism and a heterogeneous pituitary fossa mass, extending into pituitary stalk.