Retrospective Study
Copyright ©The Author(s) 2019.
World J Gastroenterol. Mar 21, 2019; 25(11): 1387-1397
Published online Mar 21, 2019. doi: 10.3748/wjg.v25.i11.1387
Table 1 Histopathological findings of primary tumor invasion (according to the Classification of Biliary Tract Cancers established by the Japanese Society of Hepato-Biliary-Pancreatic Surgery: 3rd English edition)
TisCarcinoma in situ
T1aTumor limited to mucosa
T1bTumor limited to sphincter of Oddi
T2Tumor invades duodenal wall
T3aTumor invades pancreas within 5 mm in depth
T3bTumor invades pancreas beyond 5 mm in depth
T4Tumor invades peripancreatic soft tissues, or other adjacent organs or structures

  • Citation: Sakai A, Tsujimae M, Masuda A, Iemoto T, Ashina S, Yamakawa K, Tanaka T, Tanaka S, Yamada Y, Nakano R, Sato Y, Kurosawa M, Ikegawa T, Fujigaki S, Kobayashi T, Shiomi H, Arisaka Y, Itoh T, Kodama Y. Clinical outcomes of ampullary neoplasms in resected margin positive or uncertain cases after endoscopic papillectomy. World J Gastroenterol 2019; 25(11): 1387-1397
  • URL: https://www.wjgnet.com/1007-9327/full/v25/i11/1387.htm
  • DOI: https://dx.doi.org/10.3748/wjg.v25.i11.1387