VM 580 EXAM 3 QUESTIONS AND 100%
CORECT ANSWERS!!
What is castration?
Surgical removal of the testicles.
What are the indications for castration?
Population control, behavior modification, treatment of testicular neoplasia, perineal hernia,
benign prostatic hyperplasia, perianal adenoma, and testicular torsion/abscessation/trauma.
Why is castration performed for population control and behavior?
Reduces escaping/roaming behavior, aggression, mounting, and urine spraying in intact male
dogs.
What is the indication for castration in testicular neoplasia?
Treatment of testicular tumors, especially in older dogs and cryptorchid testicles.
What are the signs of testicular neoplasia?
Palpable mass, contralateral testicular atrophy, hair loss, signs of feminization.
What imaging modality is used to confirm and examine lymph nodes in testicular
neoplasia?
Ultrasound.
Why are cryptorchid testicles at an increased risk for developing neoplastic lesions?
Abdominal/inguinal position increases thermal exposure.
What are the three common types of testicular neoplasia?
Sertoli cell tumor, interstitial (Leydig) cell tumor, seminoma.
What are the signs of feminization in dogs with Sertoli cell tumor?
Gynecomastia, attraction of other male dogs, alopecia, atrophy of the contralateral testicle,
squamous metaplasia of the prostate gland, bone marrow suppression.
, What is the treatment for testicular neoplasia?
Castration (+/- scrotal ablation) with a low incidence of metastasis for Sertoli cell tumors.
What is the treatment for perineal hernia?
Castration, as testosterone elevation is thought to result in perineal hernia development.
Does castration prevent prostatic neoplastic lesions?
No, but it reduces the chances of developing benign prostatic hyperplasia (BPH).
What is the treatment for BPH?
Castration alone, unless an abscess develops, in which case omentalization of the prostate should
be considered.
What is testicular torsion?
Twisting of the testicle, cutting off blood supply.
What is testicular abscessation?
Formation of an abscess in the testicle.
What is testicular trauma?
Injury to the testicle.
Describe the male anatomy of the testicles.
Right testicle is more cranial than the left. Ductus deferens courses ventral to the ureters
bilaterally at the level of their crossing.
What does the scrotum contain?
Cremaster muscle, spermatic fascia, vaginal tunics, tunica albuginea, testis, epididymis,
pampiniform plexus, ductus deferens, testicular artery, vein, and nerve, lymphatics.
What does the spermatic cord contain?
Pampiniform plexus, ductus deferens, testicular artery, vein, and nerve, lymphatics.
CORECT ANSWERS!!
What is castration?
Surgical removal of the testicles.
What are the indications for castration?
Population control, behavior modification, treatment of testicular neoplasia, perineal hernia,
benign prostatic hyperplasia, perianal adenoma, and testicular torsion/abscessation/trauma.
Why is castration performed for population control and behavior?
Reduces escaping/roaming behavior, aggression, mounting, and urine spraying in intact male
dogs.
What is the indication for castration in testicular neoplasia?
Treatment of testicular tumors, especially in older dogs and cryptorchid testicles.
What are the signs of testicular neoplasia?
Palpable mass, contralateral testicular atrophy, hair loss, signs of feminization.
What imaging modality is used to confirm and examine lymph nodes in testicular
neoplasia?
Ultrasound.
Why are cryptorchid testicles at an increased risk for developing neoplastic lesions?
Abdominal/inguinal position increases thermal exposure.
What are the three common types of testicular neoplasia?
Sertoli cell tumor, interstitial (Leydig) cell tumor, seminoma.
What are the signs of feminization in dogs with Sertoli cell tumor?
Gynecomastia, attraction of other male dogs, alopecia, atrophy of the contralateral testicle,
squamous metaplasia of the prostate gland, bone marrow suppression.
, What is the treatment for testicular neoplasia?
Castration (+/- scrotal ablation) with a low incidence of metastasis for Sertoli cell tumors.
What is the treatment for perineal hernia?
Castration, as testosterone elevation is thought to result in perineal hernia development.
Does castration prevent prostatic neoplastic lesions?
No, but it reduces the chances of developing benign prostatic hyperplasia (BPH).
What is the treatment for BPH?
Castration alone, unless an abscess develops, in which case omentalization of the prostate should
be considered.
What is testicular torsion?
Twisting of the testicle, cutting off blood supply.
What is testicular abscessation?
Formation of an abscess in the testicle.
What is testicular trauma?
Injury to the testicle.
Describe the male anatomy of the testicles.
Right testicle is more cranial than the left. Ductus deferens courses ventral to the ureters
bilaterally at the level of their crossing.
What does the scrotum contain?
Cremaster muscle, spermatic fascia, vaginal tunics, tunica albuginea, testis, epididymis,
pampiniform plexus, ductus deferens, testicular artery, vein, and nerve, lymphatics.
What does the spermatic cord contain?
Pampiniform plexus, ductus deferens, testicular artery, vein, and nerve, lymphatics.
