Perri A J, Morales J O, Feldman A E, Kendall A R, Karafin L
Urology. 1976 Sep;8(3):265-7. doi: 10.1016/0090-4295(76)90382-4.
A twelve-year-old male with a five-day history of scrotal swelling and pain had increased blood flow on ultrasonic examination. A testicular flow and scan indicated an ischemic testicle. Surgical exploration revealed complete torsion of the spermatic cord. In chronic cases of torsion, the Doppler stethoscope may give a false negative result because of reactive hyperemia.
一名12岁男性，有阴囊肿胀和疼痛5天的病史，超声检查显示血流增加。睾丸血流及扫描提示睾丸缺血。手术探查发现精索完全扭转。在扭转的慢性病例中，由于反应性充血，多普勒听诊器可能会给出假阴性结果。
