Hutson, J.M., Terada, M., Zhou, B., Williams, M.P.L.
Softcover reprint of the original 1st ed. 1996, V, 56 pp. 26 figs., 4 tabs.
Springer eBooks may be purchased by end-customers only and are sold without copy protection (DRM free). Instead, all eBooks include personalized watermarks. This means you can read the Springer eBooks across numerous devices such as Laptops, eReaders, and tablets.
You can pay for Springer eBooks with Visa, Mastercard, American Express or Paypal.
After the purchase you can directly download the eBook file or read it online in our Springer eBook Reader. Furthermore your eBook will be stored in your MySpringer account. So you can always re-download your eBooks.
This review describes recent research into the cause of testicular descent and discusses two controversial theories on the mechanism. New animal models of cryptorchidism are described which shed light on the possible aetiology. A brief summary is given of current management, highlighting the controversies of timing of surgery, use of hormone therapy and congenital versus "acquired" undescended testes. New information about germ cell development in the postnatal testis is changing the way we view treatment and the ultimate prognosis.
1 Introduction.- 2 Normal Testicular Descent.- 2.1 Two-Stage Hypothesis.- 2.2 Role of Müllerian Inhibiting Substance/Anti-Müllerian Hormone.- 2.3 Genitofemoral Nerve Hypothesis.- 2.4 Role of Calcitonin Gene-Related Peptide.- 2.5 Hypothesis to Explain Normal Testicular Descent.- 3 Cryptorchidism.- 3.1 Animal Models.- 3.2 Hypotheses of Aetiology.- 3.3 Recognizable Causes of Cryptorchidism.- 3.4 Congenital vs Acquired Cryptorchidism.- 3.5 Effects of Cryptorchidism.- 4 Management of Cryptorchidism.- 4.1 Rationale for Treatment and Its Timing.- 4.2 Surgical Treatment.- 4.3 Hormonal Treatment.- 4.4 Possible New Approaches to Treatment.- 5 Conclusions.- 6 References.- 7 Subject Index.