{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,17]],"date-time":"2026-06-17T17:57:49Z","timestamp":1781719069888,"version":"3.54.5"},"reference-count":14,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2022,1,4]],"date-time":"2022-01-04T00:00:00Z","timestamp":1641254400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2022,1,4]],"date-time":"2022-01-04T00:00:00Z","timestamp":1641254400000},"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":["World J Surg Onc"],"published-print":{"date-parts":[[2022,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                <jats:title>Background<\/jats:title>\n                <jats:p>We report two rare cases of retroperitoneal schwannoma completely resected by a laparoscopic medial-retroperitoneal approach aided by virtual navigation. Three-dimensional images have been used in liver and lung surgery, but there are few prior reports on retroperitoneal surgery.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Case presentation<\/jats:title>\n                <jats:p>These two case reports are of a 60-year-old man and a 40-year-old man with asymptomatic retroperitoneal schwannoma. In both cases, the tumors were located in the right renal hilum and were close to the duodenum, right ureter, and inferior vena cava. Simulation using three-dimensional images was performed before surgery, and a medial-retroperitoneal approach was performed to secure a wide surgical field. During the operation, we confirmed the location of the main feeder and the relationship between the tumor and organs with those shown on the three-dimensional images and performed total laparoscopic resection.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusion<\/jats:title>\n                <jats:p>The medial-retroperitoneal approach provides operative safety. Preoperative simulation and intraoperative navigation with three-dimensional images, which can be freely rotated and interactively visualized from any angle, are useful methods to enhance the surgeon\u2019s understanding of a patient\u2019s specific anatomy and are especially effective when resecting a retroperitoneal tumor that is located in an anatomically deep and complex location.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s12957-021-02483-0","type":"journal-article","created":{"date-parts":[[2022,1,4]],"date-time":"2022-01-04T03:02:33Z","timestamp":1641265353000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Total laparoscopic resection by medial-retroperitoneal approach using virtual navigation: two case reports of primary retroperitoneal schwannoma"],"prefix":"10.1186","volume":"20","author":[{"given":"Yuta","family":"Sato","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nobuhisa","family":"Matsuhashi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuto","family":"Sugie","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masashi","family":"Kuno","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shigeru","family":"Kiyama","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshihiro","family":"Tanaka","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Naoki","family":"Okumura","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takao","family":"Takahashi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takuya","family":"Saiki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kazuhiro","family":"Yoshida","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2022,1,4]]},"reference":[{"key":"2483_CR1","doi-asserted-by":"publisher","first-page":"355","DOI":"10.1002\/1097-0142(196908)24:2<355::AID-CNCR2820240218>3.0.CO;2-2","volume":"24","author":"TK Das Gupta","year":"1969","unstructured":"Das Gupta TK, Brasfield RD, Strong EW, et al. Benign solitary schwannomas (neurilemomas). Cancer. 1969;24:355\u201366.","journal-title":"Cancer."},{"key":"2483_CR2","doi-asserted-by":"publisher","first-page":"129","DOI":"10.1007\/s00595-014-0857-9","volume":"45","author":"M Mike","year":"2015","unstructured":"Mike M, Kano N. Laparoscopic surgery for colon cancer: a review of the fascial composition of the abdominal cavity. Surg Today. 2015;45:129\u201339.","journal-title":"Surg Today."},{"key":"2483_CR3","doi-asserted-by":"publisher","first-page":"363","DOI":"10.1007\/s00534-005-1075-z","volume":"13","author":"J Yamanaka","year":"2006","unstructured":"Yamanaka J, Saito S, Iimuro Y, et al. The impact of 3-D virtual hepatectomy simulation in living-donor liver transplantation. J Hepatobiliary Pancreat Surg. 2006;13:363\u20139.","journal-title":"J Hepatobiliary Pancreat Surg."},{"key":"2483_CR4","doi-asserted-by":"publisher","first-page":"31","DOI":"10.12659\/AOT.882633","volume":"17","author":"K Mochizuki","year":"2012","unstructured":"Mochizuki K, Takatsuki M, Soyama A, et al. The usefulness of a high-speed 3D-image analysis system in pediatric living donor liver transplantation. Ann Transplant. 2012;17:31\u20134.","journal-title":"Ann Transplant."},{"key":"2483_CR5","doi-asserted-by":"publisher","first-page":"295","DOI":"10.21037\/jtd.2016.03.61","volume":"8","author":"TF Chen-Yoshikawa","year":"2016","unstructured":"Chen-Yoshikawa TF, Date H. Update on three-dimensional image reconstruction for preoperative simulation in thoracic surgery. J Thorac Dis. 2016;8:295\u2013301.","journal-title":"J Thorac Dis."},{"key":"2483_CR6","doi-asserted-by":"publisher","first-page":"1","DOI":"10.5761\/atcs.ra.12.02174","volume":"19","author":"N Ikeda","year":"2013","unstructured":"Ikeda N, Yoshimura A, Hagiwara M, et al. Three dimensional computed tomography lung modeling is useful in simulation and navigation of lung cancer surgery. Ann Thorac Cardiovasc Surg. 2013;19:1\u20135.","journal-title":"Ann Thorac Cardiovasc Surg."},{"key":"2483_CR7","doi-asserted-by":"publisher","first-page":"1257","DOI":"10.1148\/radiographics.21.5.g01se021257","volume":"21","author":"LP Lawler","year":"2001","unstructured":"Lawler LP, Fishman EK. Multi-detector row CT of thoracic disease with emphasis on 3D volume rendering and CT angiography. Radiographics. 2001;21:1257\u201373.","journal-title":"Radiographics."},{"key":"2483_CR8","doi-asserted-by":"publisher","first-page":"16","DOI":"10.1016\/j.ijsu.2017.01.079","volume":"39","author":"F Yao","year":"2017","unstructured":"Yao F, Wang J, Yao J, et al. Three-dimensional image reconstruction with free open-source OsiriX software in video-assisted thoracoscopic lobectomy and segmentectomy. Int J Surg. 2017;39:16\u201322.","journal-title":"Int J Surg."},{"key":"2483_CR9","doi-asserted-by":"publisher","first-page":"17","DOI":"10.1177\/1556984519826321","volume":"14","author":"PS Nia","year":"2019","unstructured":"Nia PS, Olsthoorn JR, Heuts S, et al. Interactive 3D reconstruction of pulmonary anatomy for preoperative planning, virtual simulation, and intraoperative guiding in video-assisted thoracoscopic lung surgery. Innovations. 2019;14:17\u201326.","journal-title":"Innovations"},{"issue":"1","key":"2483_CR10","doi-asserted-by":"publisher","first-page":"e4","DOI":"10.1097\/SLA.0000000000003552","volume":"271","author":"Y Saito","year":"2020","unstructured":"Saito Y, Sugimoto M, Imura S, et al. Intraoperative 3D hologram support with mixed reality techniques in liver surgery. Ann Surg. 2020;271(1):e4\u20137.","journal-title":"Ann Surg."},{"key":"2483_CR11","doi-asserted-by":"publisher","first-page":"371","DOI":"10.1007\/s12029-013-9510-x","volume":"44","author":"A Mastoraki","year":"2013","unstructured":"Mastoraki A, Toska F, Tsiverdis I, et al. Retroperitoneal schwannomas: dilemmas in diagnostic approach and therapeutic management. J Gastrointest Cancer. 2013;44:371\u20134.","journal-title":"J Gastrointest Cancer."},{"key":"2483_CR12","doi-asserted-by":"publisher","first-page":"237","DOI":"10.1111\/j.1445-2197.2007.04025.x","volume":"77","author":"Q Li","year":"2007","unstructured":"Li Q, Gao C, Juzi JT, et al. Analysis of 82 cases of retroperitoneal schwannoma. ANZ J Surg. 2007;77:237\u201340.","journal-title":"ANZ J Surg."},{"key":"2483_CR13","doi-asserted-by":"publisher","first-page":"18","DOI":"10.1186\/s40792-015-0024-6","volume":"1","author":"T Maruyama","year":"2015","unstructured":"Maruyama T, Sugamoto Y, Miyagishima D, et al. Laparoscopic resection of a retroperitoneal schwannoma located in the hepatic hilus. Surg Case Rep. 2015;1:18.","journal-title":"Surg Case Rep."},{"key":"2483_CR14","doi-asserted-by":"publisher","first-page":"175","DOI":"10.1097\/01.sle.0000129379.96203.66","volume":"14","author":"N Funamizu","year":"2004","unstructured":"Funamizu N, Sasaki A, Matsumoto T, et al. Laparoscopic resection of a retroperitoneal schwannoma behind the lesser omental sac. Surg Laparosc Endosc Percutan Tech. 2004;14:175\u20137.","journal-title":"Surg Laparosc Endosc Percutan Tech."}],"container-title":["World Journal of Surgical Oncology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s12957-021-02483-0.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1186\/s12957-021-02483-0\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s12957-021-02483-0.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,1,4]],"date-time":"2022-01-04T14:14:22Z","timestamp":1641305662000},"score":1,"resource":{"primary":{"URL":"https:\/\/wjso.biomedcentral.com\/articles\/10.1186\/s12957-021-02483-0"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,1,4]]},"references-count":14,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2022,12]]}},"alternative-id":["2483"],"URL":"https:\/\/doi.org\/10.1186\/s12957-021-02483-0","relation":{},"ISSN":["1477-7819"],"issn-type":[{"value":"1477-7819","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,1,4]]},"assertion":[{"value":"26 October 2021","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"21 December 2021","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"4 January 2022","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"These two case reports were approved by the ethics committee of Gifu University School of Medicine.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Written informed consent was obtained from the patients for the publication of these case reports and accompanying images. A copy of the patient\u2019s written consent is available for review by the Editor-in-Chief of this journal.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare that they have no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"3"}}