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Abdominal computed tomography showed a 12 cm solid heterogeneous tumor in the tail of the pancreas. The patient subsequently underwent surgical resection of the pancreatic mass. Surprisingly, histological and immunohistochemical analyses revealed leiomyosarcoma arising from the smooth muscle of the splenic vein. After surgery, she received adjuvant chemotherapy. One year later, there was no evidence of local recurrence. In this paper, we discuss the available information about leiomyosarcomas of splenic vein and its management.<\/jats:p>","DOI":"10.4137\/cmo.s12403","type":"journal-article","created":{"date-parts":[[2013,10,15]],"date-time":"2013-10-15T23:11:32Z","timestamp":1381878692000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":9,"title":["Leiomyosarcoma of the Splenic Vein"],"prefix":"10.4137","volume":"7","author":[{"given":"Cristian","family":"Aguilar","sequence":"first","affiliation":[{"name":"Department of Pathology, Edgardo Rebagliati Hospital, Lima, Peru."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Francisco","family":"Socola","sequence":"additional","affiliation":[{"name":"Department of Medicine, University of Miami-Jackson Memorial Hospital, Miami, FL."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jean 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