What stimulates the gonads in male at 8 week to secret testosterone: (A) Inhibin from corpus luteum, (B) GnRH from hypothalamus of baby, (C) Placental HCG, (D) All of above
Answer is C. Absence of Mullerian structures is suggestive of inefficient testosterone and dihydrotestosterone . Estimation of levels of anti -mullerian hormone and hcg stimulation tests are helpful in differentiating the two conditions.Children with vanishing testis will have low levels of anti-mullerian hormones and inapproprite stimulation to hcg. Reference: OP Ghai,essential paediatrics,8 th edition.page no 539