8- Reproductive pathology in male

Question 1

What is cryptorchidism?

Answer 1

failure of testes to descend - retained

Question 2

What is testicular hypoplasia

Answer 2

Testical appears smaller than normal for age

Often unilateral

Absent/incomplete spermatogenesis

Question 3

What is the difference between testicular hypoplasia and atrophy?

Answer 3

Testicular atrophy occurs after puberty
Hypoplasia occurs pre-puberty or is congenital

Question 4

What is orchitis?

Answer 4

Inflammation of the testes

Question 5

What notifiable disease in rams can cause inflammation of the epididymis?

Answer 5

Brucella ovis

Question 6

Name the 3 main primary types of testicular neoplasia

Answer 6

Seminoma (germ cell tumour)
Interstitial (Leydig cell tumour)
Sertoli cell tumour

Question 7

T/F Seminomas are derived from spermatogonia

Answer 7

True

Question 8

What tumour am I?
Firm white, lobulated mass
White to brown, fibrous, cysts
Microscopy - invading interstitial tissue, cells layered in tubules. Abundant fibrous tissue
1/3 secrete oestrogen > cause feminisation

Seminomas, sertoli cells or intterstial cell tumour??

Answer 8

Sertoli cell tumour

Question 9

What is the most common testicular neoplasia in dogs?

Answer 9

Interstitial cell tumour - leading cells

Question 10

Which testicular tumour grossly appears as tan-orange/ haemorrhagic

Answer 10

Interstitial cell tumour

Question 11

What is the most common cause of prostatitis

Answer 11

Ascending bacterial infection

Question 12

Common neoplasia affecting the prostate

Answer 12

Prostatic carcinoma

Question 13

T/F cryptorchidism does not increase the risk of testicular neoplasia

Answer 13

False

Question 14

Name 3 causes of testicular atrophy

Answer 14

infections
increased scrotal temp
decreased testicular blood supply
vitamin A /Zn deficiency
drug reactions
radiation damage
obstruction
hypoestrogenism

Question 15

T/F epididymitis always affects the head of the epididymis

Answer 15

False- almost always the tail