1Calleary JG, Wiseman O, Masood J, et al. Definitive identificationof a patent processus vaginalis by intraoperative injection of methyleneblue into the hydrocoele sacjj]. J Pediatr Urol, 2008, 4 (3): 218-220.
3Steigman CK,Sotelo-Avila C, Weber TR. The incidence ofspermatic cord structures in inguinal hernia sacs from male children [J],Am J Surg Pathol, 1999,23 ( 8 ) : 880-885.