{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T22:55:20Z","timestamp":1791327320501,"version":"4.3.1"},"reference-count":11,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2020,10,2]],"date-time":"2020-10-02T00:00:00Z","timestamp":1601596800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2020,10,2]],"date-time":"2020-10-02T00:00:00Z","timestamp":1601596800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["surg case rep"],"published-print":{"date-parts":[[2020,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n<jats:title>Background<\/jats:title>\n<jats:p>Persistent descending mesocolon (PDM) is a congenital anomaly associated with the failure of fixation of the descending colon to the lateral abdominal wall. In the laparoscopic colectomy for colorectal cancer, it has been noticed that there are extensive adhesions and a distinctive anatomy of colonic vessels in cases with PDM. Therefore, it is necessary to have sufficient knowledge about PDM so that it can be appropriately treated during surgery.<\/jats:p>\n<\/jats:sec><jats:sec>\n<jats:title>Case presentation<\/jats:title>\n<jats:p>Case 1\u2014a 79-year-old man underwent laparoscopic intersphincteric resection for rectal cancer. Preoperative barium enema (BE) revealed that the sigmoid colon was located at the right side of the abdomen. An enhanced computed tomography (CT) showed that the common trunk of the left colic artery (LCA) and the first sigmoid colonic artery (S1) branched from the inferior mesenteric artery (IMA). Case 2\u2014a 68-year-old man underwent laparoscopic sigmoidectomy for sigmoid colon cancer and laparoscopic distal gastrectomy for gastric cancer synchronously. BE showed that the descending colon ran from the splenic flexure to medial caudal side. An enhanced CT showed that the distance from the LCA to the marginal artery was 1.0\u00a0cm. Case 3\u2014a 68-year-old man underwent laparoscopic low anterior resection for rectal cancer. BE showed that the descending colon ran to the medial caudal side. An enhanced CT showed that the mesentery of the descending colon was comparatively shortened. Case 4\u2014a 60-year-old man underwent laparoscopic sigmoidectomy for sigmoid colon cancer. An enhanced CT showed that the descending colon ran to the medial caudal side and predicted that the LCA and S1 formed a common trunk and branched radially from the IMA. We reported four cases with PDM recognized preoperatively as above. Three cases had a shortening of the mesocolon. While dissecting the vessels, although special attention was required to maintain the blood flow to the intestine, none of these cases developed any complications during the postoperative course.<\/jats:p>\n<\/jats:sec><jats:sec>\n<jats:title>Conclusions<\/jats:title>\n<jats:p>We considered that it is important to have positional awareness of the LCA and the marginal artery to perform the laparoscopic surgery safely when a colorectal cancer with PDM is diagnosed preoperatively using imaging methods.<\/jats:p>\n<\/jats:sec>","DOI":"10.1186\/s40792-020-00988-6","type":"journal-article","created":{"date-parts":[[2020,10,2]],"date-time":"2020-10-02T10:02:58Z","timestamp":1601632978000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Four cases of laparoscopic colectomy for sigmoid colon and rectal cancer with persistent descending mesocolon"],"prefix":"10.1186","volume":"6","author":[{"given":"Yumi","family":"Furuichi","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kensuke","family":"Kumamoto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eisuke","family":"Asano","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akihiro","family":"Kondo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun","family":"Uemura","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hironobu","family":"Suto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Minoru","family":"Oshima","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takayoshi","family":"Kishino","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hisashi","family":"Usuki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keiichi","family":"Okano","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasuyuki","family":"Suzuki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2020,10,2]]},"reference":[{"key":"988_CR1","first-page":"197","volume":"110","author":"L Morgenstern","year":"1960","unstructured":"Morgenstern L. Persistent descending mesocolon. Surg Gynecol Obset. 1960;110:197\u2013202.","journal-title":"Surg Gynecol Obset"},{"key":"988_CR2","first-page":"459","volume":"18","author":"I Okada","year":"2013","unstructured":"Okada I, Yamaguchi S, Kondo H, Suwa H, Jo T, Toshimasa I. Laparoscopic colectomy for persistent descending mesocolon: an experience of 13 patients. J Jpn Soc Endosc Surg. 2013;18:459\u201364.","journal-title":"J Jpn Soc Endosc Surg"},{"key":"988_CR3","doi-asserted-by":"publisher","first-page":"5557","DOI":"10.3748\/wjg.v20.i18.5557","volume":"20","author":"A Tsuruta","year":"2014","unstructured":"Tsuruta A, Kawai A, Oka Y, Okumura H, Matsumoto H, Hirai T, et al. Laparoscopic right hemicolectomy for ascending colon cancer with persistent mesocolon. World J Gastroenterol. 2014;20:5557\u201360.","journal-title":"World J Gastroenterol"},{"key":"988_CR4","first-page":"1806","volume":"43","author":"S Arai","year":"2016","unstructured":"Arai S, Nishimura Y, Kazama S, Nishizawa Y, Ishikawa H, Mori Y, et al. Case of laparoscopic sigmoidectomy for a patient with persistent descending mesocolon. Gan To Kagaku Ryoho. 2016;43:1806\u20138.","journal-title":"Gan To Kagaku Ryoho"},{"key":"988_CR5","first-page":"1833","volume":"45","author":"Y Mori","year":"2018","unstructured":"Mori Y, Higuchi I, Tanigawa T, Ishikawa A, Hosomi S, Urano N, et al. Laparoscopy-assisted surgery for descending colon cancer in a patient with persistent descending mesocolon-a case report. Gan To Kagaku Ryoho. 2018;45:1833\u20135.","journal-title":"Gan To Kagaku Ryoho"},{"key":"988_CR6","doi-asserted-by":"publisher","first-page":"329","DOI":"10.1111\/ases.12637","volume":"12","author":"K Hisano","year":"2019","unstructured":"Hisano K, Ueki T, Kono H, Ikenaga N, Maeyama R, Konomi H, et al. Laparoscopic high anterior resection for triple colorectal cancers with persistent ascending and descending mesocolons: a case report. Asian J Endosc Surg. 2019;12:329\u201333.","journal-title":"Asian J Endosc Surg"},{"key":"988_CR7","doi-asserted-by":"publisher","first-page":"190","DOI":"10.1186\/s12957-019-1734-1","volume":"17","author":"Y Hiyoshi","year":"2019","unstructured":"Hiyoshi Y, Miyamoto Y, Eto K, Nagai Y, Iwatsuki M, Iwagami S, et al. Laparoscopic surgery for colorectal cancer with persistent descending mesocolon. World J Surg Oncol. 2019;17:190.","journal-title":"World J Surg Oncol"},{"key":"988_CR8","doi-asserted-by":"publisher","first-page":"807","DOI":"10.21873\/invivo.11842","volume":"34","author":"L Wang","year":"2020","unstructured":"Wang L, Kondo H, Hirano Y, Ishii T, Hara K, Obara N, et al. Persistent descending mesocolon as a key risk factor in laparoscopic colorectal cancer surgery. Vivo. 2020;34:807\u201313.","journal-title":"Vivo"},{"key":"988_CR9","doi-asserted-by":"publisher","first-page":"163","DOI":"10.1038\/ajg.2016.478","volume":"112","author":"K Nagata","year":"2017","unstructured":"Nagata K, Endo S, Honda T, Yasuda T, Hirayama M, Takahashi S, et al. Accuracy of CT colonography for detection of polypoid and nonpolypoid neoplasia by gastroenterologists and radiologists: a nationwide multicenter study in Japan. 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