{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,16]],"date-time":"2025-05-16T07:28:51Z","timestamp":1747380531821},"reference-count":18,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2017,9,29]],"date-time":"2017-09-29T00:00:00Z","timestamp":1506643200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["17K17574"],"award-info":[{"award-number":["17K17574"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Hepato Biliary Pancreat"],"published-print":{"date-parts":[[2017,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Little information is available regarding microanatomy of lymphatic system in the ampulla of Vater, though it is of critical importance for an understanding of tumor progression via the lymphatics and determination of surgical strategy. The present study, therefore, aimed to demonstrate the distribution and microanatomical profiles on the lymphatic system in the ampulla.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The fine distribution and structure of the lymphatic vessels were investigated in the ampulla and the stomach by immunohistochemistry for lymphatic\u2010 (D2\u201040) and blood vascular\u2010 (<jats:styled-content style=\"fixed-case\">CD<\/jats:styled-content>31) specific markers and scanning electron microscopy. The densities of lymphatic and blood vessels were also compared.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The duodenal papilla densely developed the lymphatics with distinct aspects of lymphatic capillaries, together with blood vessels. The density of lymphatic capillaries in the extramuscular layer in the ampulla was higher than those of both the other ampullary layers and the gastric extramuscular (subserosal) layer.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The ampulla of Vater showed widespread lymphatic capillaries throughout the entire wall. The specific vascular system is suited to produce lymph everywhere and drain without via such a large vessel as lymphatic collector. This suggests that tumor cells invade the lymphatics and metastasize more easily in the ampulla than in the other gastrointestinal regions.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jhbp.499","type":"journal-article","created":{"date-parts":[[2017,8,28]],"date-time":"2017-08-28T16:48:42Z","timestamp":1503938922000},"page":"570-575","source":"Crossref","is-referenced-by-count":2,"title":["Microanatomical profiles on the lymphatic system in the human ampulla of Vater (immunohistochemistry and scanning electron microscopy)"],"prefix":"10.1002","volume":"24","author":[{"given":"Takuji","family":"Kagiya","sequence":"first","affiliation":[{"name":"Department of Gastroenterological Surgery Hirosaki University Graduate School of Medicine Hirosaki Aomori Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroshi","family":"Shimoda","sequence":"additional","affiliation":[{"name":"Department of Anatomical Science Hirosaki University Graduate School of Medicine Hirosaki Aomori 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