Pituitary dysfunction in an adult caused by duplication of the pituitary gland.

Abstract: Pituitary duplication is a rare malformation reported previously in approximately 34 patients. Survival beyond infancy is normally not observed due to various congenital malformations. We describe a case of a 30-year-old man who presented with secondary hypogonadism and gynaecomasty. MR imaging delineated two small pituitary glands and a large persistent craniopharyngeal canal. No other congenital malformations were present. It is evident that the duplication of the pituitary gland can occur without other major dysmorphias. [Copyright &y& Elsevier]