{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T09:11:15Z","timestamp":1790241075105,"version":"4.1.0"},"reference-count":30,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T00:00:00Z","timestamp":1760054400000},"content-version":"vor","delay-in-days":9,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2025,10,1]],"date-time":"2025-10-01T00:00:00Z","timestamp":1759276800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clinical Case Reports"],"published-print":{"date-parts":[[2025,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Upper tract urothelial carcinoma (UTUC) is an uncommon and aggressive malignancy that often presents as an invasive disease. After receiving systemic therapy, stereotactic body radiation therapy (SBRT) offers a non\u2010surgical option for consolidative local tumor control by delivering radiation doses in limited fractions. While SBRT is generally well tolerated in the treatment of UTUC, there is a small but serious risk of radiation\u2010associated complications. We present a case of a 67\u2010year\u2010old male with metastatic UTUC of the renal pelvis treated with chemotherapy and immunotherapy. Due to persistent disease at the primary site, he underwent consolidative SBRT using a PULSAR (Personalized Ultra\u2010fractionated Stereotactic Adaptive Radiotherapy) approach to his left kidney mass. Weeks later, he developed a renocolic fistula that was complicated by sepsis. Despite a diverting colostomy and antibiotics, he re\u2010presented with hemorrhagic shock due to an aortocolonic fistula that required emergent endovascular aortic repair (EVAR). This case illustrates a rare but serious complication of consolidative SBRT in a patient with extensive retroperitoneal malignancy. Multidisciplinary planning and close surveillance are critical to ensuring the safe integration of SBRT in the management of metastatic UTUC.<\/jats:p>","DOI":"10.1002\/ccr3.71247","type":"journal-article","created":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T03:34:21Z","timestamp":1760153661000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Radiation\u2010Associated Aortocolonic Fistula in Urothelial Carcinoma: Multidisciplinary Management and Case Report"],"prefix":"10.1002","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6994-5606","authenticated-orcid":false,"given":"Matthew","family":"Lee","sequence":"first","affiliation":[{"name":"University of Texas Southwestern Medical Center  Dallas Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anil K.","family":"Pillai","sequence":"additional","affiliation":[{"name":"University of Texas Southwestern Medical Center  Dallas Texas USA"},{"name":"Department of Radiology University of Texas Southwestern Medical Center  Dallas Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher","family":"Fan","sequence":"additional","affiliation":[{"name":"University of Texas Southwestern Medical Center  Dallas Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qi","family":"Cai","sequence":"additional","affiliation":[{"name":"University of Texas Southwestern Medical Center  Dallas Texas USA"},{"name":"Department of Pathology University of Texas Southwestern Medical Center  Dallas Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kristi","family":"Baker","sequence":"additional","affiliation":[{"name":"University of Texas Southwestern Medical Center  Dallas Texas USA"},{"name":"Parkland Health &amp; Hospital System  Dallas Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jue","family":"Wang","sequence":"additional","affiliation":[{"name":"University of Texas Southwestern Medical Center  Dallas Texas USA"},{"name":"Parkland Health &amp; Hospital System  Dallas Texas USA"},{"name":"Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center  Dallas Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,10,10]]},"reference":[{"key":"e_1_2_14_2_1","doi-asserted-by":"publisher","DOI":"10.3390\/cancers15194813"},{"key":"e_1_2_14_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00345-016-1885-4"},{"key":"e_1_2_14_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.urology.2021.01.017"},{"key":"e_1_2_14_5_1","doi-asserted-by":"publisher","DOI":"10.1097\/COC.0b013e3180ca7cb1"},{"key":"e_1_2_14_6_1","doi-asserted-by":"publisher","DOI":"10.1200\/JCO.2014.55.4675"},{"key":"e_1_2_14_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijrobp.2014.05.011"},{"key":"e_1_2_14_8_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10016-003-0097-8"},{"key":"e_1_2_14_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/jso.2930490113"},{"key":"e_1_2_14_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijrobp.2012.06.005"},{"issue":"3","key":"e_1_2_14_11_1","first-page":"236","article-title":"The Tolerance of Gastrointestinal Organs to Stereotactic Body Radiation Therapy: What Do We Know So Far?","volume":"5","author":"Thomas T. 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