Kapitel 112 – Penis and Prepuce

Question 1

List the 4 extrinsic penile muscles in dogs

Answer 1

a. The retractor penis
b. Ischiocavernosus
c. Bulbospongiosus
d. ischiourethralis

Question 2

List the types of hypospadias

Answer 2

a. Glandular
b. Penile
c. Scrotal
d. Perineal
e. Anal

Question 3

List examples of penile tumors

Answer 3

a. transmissible venereal tumor (TVT)
b. papilloma
c. squamous cell carcinoma
d. mastocytoma
e. hemangiosarcoma
f. osteosarcoma of the os penis

Question 4

what is the treatment of transmissible venereal tumors?

Answer 4

Patients with TVTs respond to different modes of treatment, including radiation therapy, intravenous or intratumoral chemotherapy (e.g., intratumoral vincristine and interleukin-2), and surgery.

Question 5

What is the cause of phimosis? What is the treatment?

Answer 5

a. Phimosis = inability to protrude the penis from the preputial orfice.

b. Can be congenital: usually have problem to urinate normally from young age

c. Aquired: sec. to trauma or neoplasia.

d. Treatment: surgical enlargement to the orifice.

Question 6

What are the most common tumors of the preputium?

Answer 6

Mast cell tumor and squamous cell carcinoma