6Kwon W, Jang JY, Lee SE, et al. Clinicopathologic fea- tures of polypoid lesions of the gallbladder and risk fac- tors of gallbladder Cancer[J]. J Korean Med Sci,2009,24 (3) :481-487.
7Ito H, Hann LE, Dr angelica M, et al. Polypoid lesions of the gallbladder: diagnosis and follow up[J]. J Am Coll Surg,2009,208(4) :570-575.
8Tsuji S, Sofuni A, Moriyasu F, et al. Contrast-enhanced ultrasonography in the diagnosis of gallbladder disease[J]. Hepatogastroenterology, 2012,59 (114) : 336-340.
9Fang X, Gupta N, Shen SS, et al. Intraluminal polypoid metastasis of renal cell carcinoma in gallbladder mimic- king gallbladder polyp[J]. Arch Pathol Lab Med, 2010, 134(7) : 1003-1009.