3Azurmendi Sastre V, Llarena Ibarguren R, Lozano Ortega JL.Urachal cyst. Current status Arch Esp Urol, 2003,56 : 999-1004.
4Huang CS, Luo CC, Chao HC, Urachal anomalies in children:experience at one institution. Chang Gung Med J, 2003,26:412-416.
5Chouhan M, Cuekow P, Humphries PD. Utility of diffusion- weighted imaging in the presurgical diagnosis of an infected urachal eyst[J]. Pediatr Radiol, 2011,41 ( 1 ) : 125-128.
6Ohgaki M, Higuchi A, Chou H, et al. Acute peritonitis caused by intraperitoneal rupture of an infected urachal cyst: report of a case [J]. Surg Today ,2003,33(1) :75-77.