Neoplasms of the Ovary

Question 1

What is the most common ovarian tumor that occurs in mares?

Answer 1

Granulosa-theca cell tumors

Question 2

These arise from the surface epithelium or invaginations of epithelium from the surface

Answer 2

Canine Ovarian Epithelial Tumors

Question 3

Neoplasms of germ cells are called:

Answer 3

Teratomas and Dysgerminomas

Question 4

Benign tumors of surface epithelium are called:

Answer 4

Ovarian adenomas

Question 5

Malignancies of surface epithelium are called:

Answer 5

Ovarian adenocarcinoma

Question 6

Neoplasms of gonadal stroma are called:

Answer 6

Granulosa cell tumor

Question 7

The malignancy is bilateral and is extending out of the ovarian bursa

Answer 7

Cystadenocarcinimas

Question 8

Bone, cartilage, dermis

Answer 8

Mesoderm

Question 9

The epidermis, hair follicles

Answer 9

Ectoderm

Question 10

Lung, liver

Answer 10

Endoderm

Question 11

What are the ideal methods to diagnose a granulosa theca cell tumor in a mare that presents with these clinical signs?

Answer 11

• Measurement of inhibin
• Measurement of anti-Mullerian hormone
• Rectal palpation
• Transrectal ultrasound