Scrotum Flashcards
What is the fibrous capsule surrounding the testicle?
tunica albuginea
E 112
What does the mediastinum testis appear as sonographically?
echogenic linear band extending longitudinally within the testis
E 112
What is the rete testis?
network of delicate tubules located at the mediastinum testis that carries sperm to the epididymis
E 113
What is the appendix testis?
remnant of the Mullerian duct, small ovoid structure located beneath the head of the epididymis
E 113
What is the appendix epididymis?
derived from the Wolffian duct, small stalk projecting off the epididymis
E 113
What is the tunica vaginalis?
saccular extension of the peritoneum into the scrotal sac
visceral layer is the inner layer surrounds testis and epididymis
parietal layer is the outer layer lines scrotal chamber
E 114
What is consisted in the spermatic cord?
vas deferens arteries-testicular, deferential, and cremasteric pampiniform plexus of veins lymphatics nerves E 114
What age group is the most common for malignant testicular neoplasms?
15-35 years
E 115
What is the most common testicular cancer?
seminoma
E 115
What are the risk factors for testicular neoplasm?
cryptorchidism family hx infertility Klinefelter syndrome Down syndrome smoking white race E 115
What should be evaluated if a testicular mass is seen?
lymph nodes in the paraaortic region
lab values - hCG, AFP, LDH
E 115
What lab value may be elevated in a nonseminoma?
AFP
E 116
What lab value may be elevated in both seminomas and nonseminomas?
beta-hCG
E 116
What is the most common testicular tumor in children?
yolk sac tumors aka endodermal sinus tumor
E 116
What lab value may be elevated in yolk sac tumors?
AFP
E 116