"Polyorchidism is asymptomatic in the majority of patients. Some patients may present with scrotal pain, scrotal swelling, hydrocele, varicocele, epididymitis, infertility, testicular malignancy, or testicular torsion 2. Testicular torsion is the most commonly encountered complication of polyorchidism 3."
"There are several types of this condition with triorchidism being the most common. In this type, there are three testes with the supernumerary being situated on the left in 65% of the cases. In 4.3% of patients with polyorchidism, there is bilateral involvement with four testes."
"Polyorchidism is classified into two major types, A and B, based on the venous drainage of the testis (see Figure 1)."