Cryptorchidism (잠복고환증)

소개글

잠복고환증에 관한 발표 자료 입니다.
잠복고환증에 대해서 발표를 준비하거나 공부를 하시는 분께 도움이 되리라 생각합니다.

목차

1. Definitions
2. Incidence
3. Classification
4. Descent Pathophysiology
5. Adverse Consequences
6. Workup
7. Management

본문내용

*Definitions
Definition: The absence of one or both testes from the scrotum
Location
Normal path of descent between the abdominal cavity and just outside the anatomic scrotum
Migrate to ectopic positions outside the scrotum, not along the normal path of descent
Incidence
Isolated cryptorchidism is one of the most common congenital anomalies found at birth and affects upward of 3% of full-term male newborns

Unilateral cryptorchidism is more common than bilateral cryptorchidism, which occurs in 1.6% to 1.9% of boys

30.3% incidence of undescended testes in premature infants
Incidence
Risk Factors
Low-birth-weight male newborns
Family history
3.6-fold overall
6.9-fold if a brother is affected
4.6-fold if the father is affected

< 중 략 >

Adverse Consequences
Infertility
Hypoplasia of the Leygig cells (the earliest postnatal histologic abnormality)
Failure of maturation and proliferation of germ cells
Redused total germ cell count
Subnormal sperm counts
Bilateral – 53%
Unilateral – 75%

참고 자료

Campbell`s Urology, 9th ed.