The specific sonographic signs of testicular appendage torsion were that unequal hyperechoic node with no blood flow was found between or beside testicle and head of epididymis as well as the blood flow was slight increased in the testicle and epididymis.

• 睾丸附件扭转超声表现为睾丸与附睾头之间或睾丸旁不均质高回声结节及睾丸、附睾内血运轻度增多。