{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T10:45:46Z","timestamp":1787222746771,"version":"build-2736575974"},"reference-count":16,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2023,10,17]],"date-time":"2023-10-17T00:00:00Z","timestamp":1697500800000},"content-version":"vor","delay-in-days":16,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clinical Case Reports"],"published-print":{"date-parts":[[2023,10]]},"abstract":"<jats:title>Key Clinical Message<\/jats:title>\n                  <jats:p>Primary retroperitoneal masses have numerous differential diagnoses, many of which are rare entities. These can be neoplastic or nonneoplastic. Among the rare conditions are solitary fibrous tumors, which can either be benign or malignant. It is a mesenchymal, spindle\u2010cell tumor, reported first in 1931 as a pleural tumor by Klemperer et\u00a0al. A 20\u2010year\u2010old lady, with abdominal pain for 6\u2009months, was diagnosed with a retroperitoneal mass on the left lower abdomen on USG which was confirmed by an MRI scan of the abdomen. The patient underwent laparoscopy\u2010assisted excision of the mass. The final histopathological reports and immunohistochemistry reports revealed a solitary fibrous tumor. Solitary fibrous tumors (SFTs) are rare tumors in the retroperitoneum. In our search, fewer than a hundred cases have been reported. It has a characteristic \u201cpatternless pattern\u201d in a microscopic study. Adverse outcomes of SFTs are associated with atypical features in histology, such as nuclear pleomorphism, necrosis, increased cellularity, and mitoses &gt;4\/10 HPF and size more than 10\u2009cm. The standard of care is surgical excision with clear margins. Open surgeries have been done traditionally; we present a case where we performed the excision laparoscopically.<\/jats:p>","DOI":"10.1002\/ccr3.8055","type":"journal-article","created":{"date-parts":[[2023,10,17]],"date-time":"2023-10-17T08:06:48Z","timestamp":1697530008000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Primary retroperitoneal solitary fibrous tumor: A case report"],"prefix":"10.1002","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3621-0996","authenticated-orcid":false,"given":"Pramesh Prasad","family":"Shrestha","sequence":"first","affiliation":[{"name":"Department of Urology Nepal Mediciti  Lalitpur Bagmati Nepal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mahesh Bahadur","family":"Adhikari","sequence":"additional","affiliation":[{"name":"Department of Urology Nepal Mediciti  Lalitpur Bagmati Nepal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bipin","family":"Maharjan","sequence":"additional","affiliation":[{"name":"Department of Urology Nepal Mediciti  Lalitpur Bagmati Nepal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ravi Kiran","family":"Gautam","sequence":"additional","affiliation":[{"name":"Department of Urology Nepal Mediciti  Lalitpur Bagmati Nepal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Birodh","family":"Basnet","sequence":"additional","affiliation":[{"name":"Department of Urology Nepal Mediciti  Lalitpur Bagmati Nepal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Deepak Kumar","family":"Yadav","sequence":"additional","affiliation":[{"name":"Department of Urology Nepal Mediciti  Lalitpur Bagmati Nepal"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,10,17]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajim.4700220103"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1155\/2017\/4634235"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1186\/s13569-015-0034-y"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1038\/modpathol.2017.54"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/his.12267"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0046-8177(99)90169-7"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00261-014-0311-x"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1148\/rg.312105080"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.1097\/RCT.0b013e3181c84154"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1245\/s10434-013-3242-9"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2559.2005.02290.x"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.3892\/ol.2016.4967\/abstract"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.1097\/00000478-198908000-00003"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.1210\/jc.2014-4534"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.1186\/2045-3329-3-7"},{"key":"e_1_2_10_17_1","doi-asserted-by":"publisher","DOI":"10.1177\/0218492313498090"}],"container-title":["Clinical Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/ccr3.8055","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,11,27]],"date-time":"2025-11-27T14:23:11Z","timestamp":1764253391000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/ccr3.8055"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,10]]},"references-count":16,"journal-issue":{"issue":"10","published-print":{"date-parts":[[2023,10]]}},"alternative-id":["10.1002\/ccr3.8055"],"URL":"https:\/\/doi.org\/10.1002\/ccr3.8055","archive":["Portico"],"relation":{},"ISSN":["2050-0904","2050-0904"],"issn-type":[{"value":"2050-0904","type":"print"},{"value":"2050-0904","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,10]]},"assertion":[{"value":"2023-06-10","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2023-10-03","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2023-10-17","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e8055"}}