{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,11]],"date-time":"2026-06-11T07:00:21Z","timestamp":1781161221854,"version":"3.54.1"},"reference-count":16,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2026,6,11]],"date-time":"2026-06-11T00:00:00Z","timestamp":1781136000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clinics and Practice"],"abstract":"<jats:p>Hydronephrosis caused by malignant ureteral obstruction or radiotherapy-induced ureteral stenosis is a frequent complication in patients with cervical cancer. Effective management requires continuous urinary drainage, which can be achieved either internally through ureteral stent placement or externally via percutaneous nephrostomy. Among available devices, the AlliumTM fully covered nitinol mesh ureteral stent is designed to treat ureteral or urethral strictures while allowing safe and easy removal. However, serious complications have been reported, including uretero-enteric, uretero-arterial, and uretero-vaginal fistulas, pseudoaneurysm, ureteral perforation and sepsis. We report the case of a 44-year-old woman diagnosed in 2020 with stage IIIC1 cervical cancer (FIGO classification) who underwent surgery followed by adjuvant radiotherapy. In 2021, a right metallic ureteral stent was placed to treat ureteral obstruction. Two years later, she presented with right lumbar pain, and abdominal ultrasonography revealed grade III right hydronephrosis. CT scan demonstrated migration of the metallic ureteral stent into the rectal wall. Endoscopic extraction of the migrated stent was successfully performed via colonoscopy. Retrograde pyelography and CT imaging confirmed the presence of a recto-ureteral fistula. A 6 Ch\/26 cm double-J ureteral stent was subsequently placed with good positioning and drainage. At the six-month follow-up, replacement of the double-J stent was performed. Imaging studies showed only minor residual hydronephrosis. Although metallic ureteral stents are effective for managing malignant ureteral obstruction, particularly in complex oncologic cases, they are not free of severe complications. The risk appears increased in patients who have undergone radiotherapy, emphasizing the need for careful monitoring and long term follow-up.<\/jats:p>","DOI":"10.3390\/clinpract16060109","type":"journal-article","created":{"date-parts":[[2026,6,11]],"date-time":"2026-06-11T05:50:58Z","timestamp":1781157058000},"page":"109","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Clinical and Radiological Findings in Endorectal Migration of a Metallic Ureteral Stent"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-5693-8483","authenticated-orcid":false,"given":"Szabolcs","family":"Andr\u00e9","sequence":"first","affiliation":[{"name":"Department of Urology, Mures County Clinical Hospital, P-\u021ba, a Bern\u00e1dy Gy\u00f6rgy, Nr. 6, 540072 T\u00e2rgu Mure\u0219, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5950-7557","authenticated-orcid":false,"given":"Daniela","family":"Dobru","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology, Mures County Hospital, 540103 T\u00e2rgu Mure\u0219, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"\u00c1rp\u00e1d-Oliv\u00e9r","family":"Vida","sequence":"additional","affiliation":[{"name":"Department of Urology, Mures County Clinical Hospital, P-\u021ba, a Bern\u00e1dy Gy\u00f6rgy, Nr. 6, 540072 T\u00e2rgu Mure\u0219, Romania"},{"name":"Department of Urology, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of T\u00e2rgu Mures, 540139 T\u00e2rgu Mure\u0219, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Miheler","family":"Dora","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Clinical County Emergency Hospital Mures, 540072 T\u00e2rgu Mure\u0219, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rares-Florin","family":"Vascul","sequence":"additional","affiliation":[{"name":"Institution Organizing University Doctoral Studies (IOSUD), George Emil Palade University of Medicine, Pharmacy, Science, and Technology of T\u00e2rgu Mures, 540139 T\u00e2rgu Mures, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C\u0103lin","family":"Chibelean","sequence":"additional","affiliation":[{"name":"Department of Urology, Mures County Clinical Hospital, P-\u021ba, a Bern\u00e1dy Gy\u00f6rgy, Nr. 6, 540072 T\u00e2rgu Mure\u0219, Romania"},{"name":"Department of Urology, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of T\u00e2rgu Mures, 540139 T\u00e2rgu Mure\u0219, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-8009-3482","authenticated-orcid":false,"given":"Lorand Tibor","family":"Reman","sequence":"additional","affiliation":[{"name":"Department of Urology, Mures County Clinical Hospital, P-\u021ba, a Bern\u00e1dy Gy\u00f6rgy, Nr. 6, 540072 T\u00e2rgu Mure\u0219, Romania"},{"name":"Department of Urology, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of T\u00e2rgu Mures, 540139 T\u00e2rgu Mure\u0219, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-4778-380X","authenticated-orcid":false,"given":"Raul-Dumitru","family":"Gherasim","sequence":"additional","affiliation":[{"name":"Department of Urology, Mures County Clinical Hospital, P-\u021ba, a Bern\u00e1dy Gy\u00f6rgy, Nr. 6, 540072 T\u00e2rgu Mure\u0219, Romania"},{"name":"Department of Urology, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of T\u00e2rgu Mures, 540139 T\u00e2rgu Mure\u0219, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Edva Anna","family":"Frunda","sequence":"additional","affiliation":[{"name":"Institution Organizing University Doctoral Studies (IOSUD), George Emil Palade University of Medicine, Pharmacy, Science, and Technology of T\u00e2rgu Mures, 540139 T\u00e2rgu Mures, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Orsolya Katalin Ilona","family":"Martha","sequence":"additional","affiliation":[{"name":"Department of Urology, Mures County Clinical Hospital, P-\u021ba, a Bern\u00e1dy Gy\u00f6rgy, Nr. 6, 540072 T\u00e2rgu Mure\u0219, Romania"},{"name":"Department of Urology, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of T\u00e2rgu Mures, 540139 T\u00e2rgu Mure\u0219, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,6,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"28","DOI":"10.1002\/ijgo.13865","article-title":"Cancer of the cervix uteri: 2021 update","volume":"155","author":"Bhatla","year":"2021","journal-title":"Int. J. Gynecol. Obstet."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"519","DOI":"10.1002\/bco2.340","article-title":"Malignant upper urinary tract obstruction in cancer patients: A systematic review","volume":"5","author":"Shah","year":"2024","journal-title":"BJUI Compass"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"2841","DOI":"10.12998\/wjcc.v8.i13.2841","article-title":"Metallic ureteral stent in restoring kidney function: Nine case reports","volume":"8","author":"Gao","year":"2020","journal-title":"World J. Clin. Cases"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"e0043","DOI":"10.5041\/RMMJ.10313","article-title":"Allium stents: A novel solution for the management of upper and lower urinary tract strictures","volume":"8","author":"Bahouth","year":"2017","journal-title":"Rambam Maimonides Med. J."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"63","DOI":"10.1089\/end.2005.19.63","article-title":"Stent-change therapy in advanced malignancies with ureteral obstruction","volume":"19","author":"Rosenberg","year":"2005","journal-title":"J. Endourol."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"192","DOI":"10.1007\/s00345-026-06287-3","article-title":"Comparison of the efficacy and safety of metallic ureteral stent versus polymer ureteral stent for patients with malignant ureteral obstruction: A meta-analysis of comparative trials","volume":"44","author":"Kim","year":"2026","journal-title":"World J. Urol."},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Xu, Y., Cai, Z., Chen, S., Xie, Q., Zhou, Z., Zhuang, H., Liang, N., Tsauo, J., and Xu, G. (2024). Safety and efficacy of thermo-expandable metallic stent in ureteral stricture following gynecological malignancy surgery and radiotherapy: A single center experience with 33 cases. BMC Urol., 24.","DOI":"10.1186\/s12894-024-01609-2"},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Chow, P.-M., Chiang, I.-N., Chen, C.-Y., Huang, K.-H., Hsu, J.-S., Wang, S.-M., Lee, Y.-J., Yu, H.-J., Pu, Y.-S., and Huang, C.-Y. (2015). Malignant ureteral obstruction: Functional duration of metallic versus polymeric ureteral stents. PLoS ONE, 10.","DOI":"10.1371\/journal.pone.0135566"},{"key":"ref_9","first-page":"753","article-title":"Multicenter experience with Allium ureteral stent for the treatment of ureteral stricture and fistula","volume":"154","author":"Bahouth","year":"2015","journal-title":"Harefuah"},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Miyazaki, J., Onozawa, M., Takahashi, S., Maekawa, Y., Yasuda, M., Wada, K., Maeda, Y., Masaki, T., Yamaguchi, A., and Suzuki, M. (2019). The Resonance\u00ae metallic ureteral stent in the treatment of malignant ureteral obstruction: A prospective observational study. BMC Urol., 19.","DOI":"10.1186\/s12894-019-0569-y"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"6","DOI":"10.36518\/2689-0216.1073","article-title":"Colonic migration of a nephroureteral stent through a colovesical fistula","volume":"2","author":"Pigg","year":"2021","journal-title":"HCA Healthc. J. Med."},{"key":"ref_12","unstructured":"Belyayeva, M., Leslie, S.W., Rout, P., and Jeong, J.M. (2026, February 25). Acute pyelonephritis, StatPearls [Internet], Available online: https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK519537\/."},{"key":"ref_13","first-page":"101482","article-title":"Removal of an intra-renal migrated ureteral stent through a percutaneous nephroscopy in a 2-year-old child","volume":"34","author":"Alonso","year":"2020","journal-title":"Urol. Case Rep."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"451","DOI":"10.1089\/cren.2020.0178","article-title":"Laparoscopic management of a misplaced ureteral stent in the duodenum","volume":"6","author":"Prakash","year":"2020","journal-title":"J. Endourol. Case Rep."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Tognarelli, A., Faggioni, L., Manassero, F., Gadducci, A., and Selli, C. (2019). A case report of endorectal displacement of a right ureteral stent following radiochemotherapy and bevacizumab. BMC Urol., 19.","DOI":"10.1186\/s12894-019-0566-1"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"2160","DOI":"10.21037\/tau-24-191","article-title":"Iatrogenic ureteroarterial fistula treated by the placement of Allium stent: A case report and literature review","volume":"13","author":"Ji","year":"2024","journal-title":"Transl. Androl. Urol."}],"container-title":["Clinics and Practice"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2039-7283\/16\/6\/109\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,6,11]],"date-time":"2026-06-11T06:44:45Z","timestamp":1781160285000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2039-7283\/16\/6\/109"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,6,11]]},"references-count":16,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2026,6]]}},"alternative-id":["clinpract16060109"],"URL":"https:\/\/doi.org\/10.3390\/clinpract16060109","relation":{},"ISSN":["2039-7283"],"issn-type":[{"value":"2039-7283","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,6,11]]}}}