Cryptorchidism

Question 1

Normal decent of testes

Answer 1

Transabdominal: gubernaculum swelling and hormone control

Inguinoscrotal testosterone is crucial.

Completed in majority by 33 weeks gestation

Question 2

UDT etiology

Answer 2

30% of premature babies

Testis are intrinsically abnormal

Hormonal lack of testosterone surge to help descent

Mechanical: asso with prune belly syndrome.

Question 3

Complications of UDT

Answer 3

Malignancy 5-10X more likely 
Infertility 
Inguinal hernia: patent processes vaginalis 
Testicular torsion
Trauma

Question 4

Definitions of UDC, retractile testis and ectopic.

Answer 4

Retractile= normally descended testis which are displaced upwards via cremaster muscle spasm. Therefore can always be put back into scrotum.

UDT= arrested along normal descent path.

Ectopic= has passed through inguinal canal and then has deviated fro, normal line of descent to lie outside scrotum.