Duplication of the pituitary gland: case report and review of the literature

Pituitary duplication is an extremely rare malformation reported previously in approximately 34 patients and usually associated with various congenital malformations. Survival beyond infancy is normally not observed. We describe a case of a 30-year old man with duplication of the pituitary gland who presented with secondary hypogonadism since childhood and increasing gynaecomasty. The patient was referred to imaging due to increased prolactin levels with the question of adenoma of the hypophysis. MR imaging delineated two infundibular recesses, two extended pituitary stalks and two small pituitary glands. Due to…