Idiopathic Precocious Puberty in the Chimpanzee: A Case Report

Abstract

A female chimpanzee developed premature sex skin swelling, breast budding, advanced bone age, and moderate estrogen effect of the vaginal cytology. Extensive radiographic and hormonal studies excluded all the known causes of precocious puberty and pseudo‐puberty, yielding a diagnosis of idiopathic true precocious puberty. To our knowledge this is the first observation of idiopathic true precocious puberty in a chimpanzee.