Leung A K
University of Calgary, Alberta Children's Hospital.
Am Fam Physician. 1988 Sep;38(3):153-6.
Transverse division of the embryologic genital ridge explains the various forms of polyorchidism that have been reported. Most patients with supernumerary testes are asymptomatic and have painless groin or testicular masses. The majority have triorchidism, and the supernumerary testis is most frequently on the left side. The most common associated anomalies are inguinal hernia and maldescent of the testis. Testicular biopsy is essential for diagnosis.
胚胎期生殖嵴的横向分裂解释了已报道的各种多睾症形式。大多数多睾症患者无症状，有腹股沟或睾丸无痛性肿块。大多数为三睾症，多余睾丸最常见于左侧。最常见的相关异常是腹股沟疝和睾丸下降不全。睾丸活检对诊断至关重要。
