Bilateral vanished testes diagnosed with a single blood sample showing very high gonadotropins (follicle-stimulating hormone and luteinizing hormone) and very low inhibin B

Abstract

The serum values of gonadotropins and inhibin B from boys with bilateral vanished testes were significantly different from those of bilateral cryptorchid boys, indicating no germinative epithelium, no Sertoli cells and compensatory high gonadotropins. If such abnormal serum values are obtained from boys with bilateral non-palpable testes, tubular tissue is not present and surgery can be avoided.