Electron microscopic studies of testes in Kallman syndrome.

A patient with Kallman syndrome is presented emphasizing the urologic aspects of this unusual disorder. Testes biopsy at the time of orchiopexy demonstrated infantile testes with interstitial fibrosis and a diminished Leydig and Sertoli cell population. The electron micrograph confirmed type B Sertoli cells. The implications of these findings are discussed and details of treatment given.