Peripheral precocious puberty due to inadvertent exposure to testosterone: case report and review of the literature.

Sexual development in children due to exogenous androgen exposure is rare and sparsely reported. In this paper, we present a new case of peripheral precocious puberty of exogenous origin in an 18-month-old boy due to inadvertent exposure to a testosterone gel used by his father as hormonal replacement therapy. We also review other cases in the literature.