{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T00:04:31Z","timestamp":1756339471528,"version":"3.44.0"},"reference-count":13,"publisher":"BMJ","issue":"3","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2024,3,1]]},"published-print":{"date-parts":[[2024,3]]},"abstract":"<jats:p>An elderly man was referred to vascular surgery on incidental discovery of a left retroperitoneal mass ultimately found to be of left renal vein (LRV) origin. He initially presented with recurring lower back pain. CT of the abdomen\/pelvis showed a 6.0\u00d75.5\u2009cm lobulated retroperitoneal mass anterior to the infrarenal aorta. Resection of the mass necessitated a multidisciplinary team consisting of medical oncologists, radiation oncologists, urologists and vascular surgeons. In efforts to obtain an R0 margin, en-bloc resection of the LRV from its confluence with the inferior vena cava (IVC) was necessary. A primary repair of the IVC was performed with preservation of the left kidney. The patient\u2019s back pain has since resolved after the surgery. A literature search found IVC reconstructions to be safe and effective in the removal of vascular leiomyosarcomas.<\/jats:p>","DOI":"10.1136\/bcr-2023-254856","type":"journal-article","created":{"date-parts":[[2024,3,18]],"date-time":"2024-03-18T13:40:37Z","timestamp":1710769237000},"page":"e254856","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Resection of primary left renal vein leiomyosarcoma with renal preservation following an unusual clinical presentation"],"prefix":"10.1136","volume":"17","author":[{"given":"Tyler John","family":"Cholankeril","sequence":"first","affiliation":[{"name":"Cooper Medical School of Rowan University, Camden, New Jersey, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Johanna","family":"Lou","sequence":"additional","affiliation":[{"name":"Cooper University Health Care, Camden, New Jersey, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Francis","family":"Spitz","sequence":"additional","affiliation":[{"name":"Cooper University Health Care, Camden, New Jersey, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bruce","family":"Tjaden","sequence":"additional","affiliation":[{"name":"Cooper University Health Care, Camden, New Jersey, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2024,3,18]]},"reference":[{"key":"2025082707320403000_17.3.e254856.1","doi-asserted-by":"crossref","first-page":"56","DOI":"10.1515\/raon-2016-0051","article-title":"Leiomyosarcoma of the renal vein: analysis of outcome and prognostic factors in the world case series of 67 patients","volume":"51","author":"Novak","year":"2017","journal-title":"Radiol Oncol"},{"key":"2025082707320403000_17.3.e254856.2","doi-asserted-by":"crossref","first-page":"276","DOI":"10.2214\/ajr.179.1.1790276","article-title":"Leiomyosarcoma of the renal vein: imaging and surgical reconstruction","volume":"179","author":"Kaushik","year":"2002","journal-title":"AJR Am J Roentgenol"},{"key":"2025082707320403000_17.3.e254856.3","doi-asserted-by":"crossref","DOI":"10.1186\/s12885-020-07730-3","article-title":"Actual long-term survival after resection of stage III soft tissue sarcoma","volume":"21","author":"Lee","year":"2021","journal-title":"BMC Cancer"},{"key":"2025082707320403000_17.3.e254856.4","doi-asserted-by":"crossref","DOI":"10.1177\/2036361318820171","article-title":"Soft tissue leiomyosarcoma-diagnostics, management, and prognosis: data of the registry cancer of the center of Tunisia","volume":"11","author":"Mestiri","year":"2019","journal-title":"Rare Tumors"},{"key":"2025082707320403000_17.3.e254856.5","article-title":"Leiomyosarcoma of renal vein: a case report","volume":"31","author":"Manoj Kumar","year":"2020","journal-title":"Urol Case Rep"},{"key":"2025082707320403000_17.3.e254856.6","doi-asserted-by":"crossref","first-page":"1403","DOI":"10.1148\/rg.2018180006","article-title":"Retroperitoneal leiomyosarcoma from the radiologic pathology archives","volume":"38","author":"Marko","year":"2018","journal-title":"Radiographics"},{"key":"2025082707320403000_17.3.e254856.7","doi-asserted-by":"crossref","first-page":"1401","DOI":"10.1245\/s10434-014-4135-2","article-title":"Extended surgical resection and histology in retroperitoneal sarcoma","volume":"22","author":"Crago","year":"2015","journal-title":"Ann Surg Oncol"},{"key":"2025082707320403000_17.3.e254856.8","unstructured":"Fletcher CDM , Bridge JA , Hogendoorm PCW , et al . 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