{"title":"恶性黑色素瘤回肠导管转移1例","authors":"Noritoshi Shamoto, Yushi Naito, Yuta Sano, Kazuna Matsuo, Satoshi Inoue, Tomoyasu Sano, Tomokazu Kimura, Shohei Ishida, Yoshihisa Matsukawa, Shusuke Akamatsu","doi":"10.1002/iju5.70073","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Introduction</h3>\n \n <p>Tumor development in the ileal conduit is rare. Herein, we present a case of metastatic malignant melanoma occurring within the ileal conduit 17 years after radical cystectomy.</p>\n </section>\n \n <section>\n \n <h3> Case Presentation</h3>\n \n <p>A 76-year-old Japanese man, with a history of bladder cancer treated with radical cystectomy and ileal conduit diversion, presented with gross hematuria. He had malignant melanoma diagnosed 10 years prior, with recurrent metastases managed through surgery and adjuvant therapy. During his recent admission, metastases to the subcutaneous tissue and retroperitoneum were noted. Contrast-enhanced computed tomography revealed bilateral hydronephrosis and a tumor in the ileal conduit. Endoscopic resection confirmed metastatic malignant melanoma. The patient's renal function stabilized postoperatively, and hematuria was controlled. A palliative care approach was adopted to treat the melanoma.</p>\n </section>\n \n <section>\n \n <h3> Conclusion</h3>\n \n <p>This rare case of metastatic malignant melanoma within an ileal conduit highlights the importance of histopathological examinations in patients with overlapping malignancies.</p>\n \n <p><b>Trial Registration:</b> 2016-0474</p>\n </section>\n </div>","PeriodicalId":52909,"journal":{"name":"IJU Case Reports","volume":"8 5","pages":"485-488"},"PeriodicalIF":0.0000,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/iju5.70073","citationCount":"0","resultStr":"{\"title\":\"A Case of Malignant Melanoma Metastasis in the Ileal Conduit\",\"authors\":\"Noritoshi Shamoto, Yushi Naito, Yuta Sano, Kazuna Matsuo, Satoshi Inoue, Tomoyasu Sano, Tomokazu Kimura, Shohei Ishida, Yoshihisa Matsukawa, Shusuke Akamatsu\",\"doi\":\"10.1002/iju5.70073\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> Introduction</h3>\\n \\n <p>Tumor development in the ileal conduit is rare. Herein, we present a case of metastatic malignant melanoma occurring within the ileal conduit 17 years after radical cystectomy.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Case Presentation</h3>\\n \\n <p>A 76-year-old Japanese man, with a history of bladder cancer treated with radical cystectomy and ileal conduit diversion, presented with gross hematuria. He had malignant melanoma diagnosed 10 years prior, with recurrent metastases managed through surgery and adjuvant therapy. During his recent admission, metastases to the subcutaneous tissue and retroperitoneum were noted. Contrast-enhanced computed tomography revealed bilateral hydronephrosis and a tumor in the ileal conduit. Endoscopic resection confirmed metastatic malignant melanoma. The patient's renal function stabilized postoperatively, and hematuria was controlled. A palliative care approach was adopted to treat the melanoma.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Conclusion</h3>\\n \\n <p>This rare case of metastatic malignant melanoma within an ileal conduit highlights the importance of histopathological examinations in patients with overlapping malignancies.</p>\\n \\n <p><b>Trial Registration:</b> 2016-0474</p>\\n </section>\\n </div>\",\"PeriodicalId\":52909,\"journal\":{\"name\":\"IJU Case Reports\",\"volume\":\"8 5\",\"pages\":\"485-488\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-07-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/iju5.70073\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IJU Case Reports\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/iju5.70073\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Medicine\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IJU Case Reports","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/iju5.70073","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Medicine","Score":null,"Total":0}
A Case of Malignant Melanoma Metastasis in the Ileal Conduit
Introduction
Tumor development in the ileal conduit is rare. Herein, we present a case of metastatic malignant melanoma occurring within the ileal conduit 17 years after radical cystectomy.
Case Presentation
A 76-year-old Japanese man, with a history of bladder cancer treated with radical cystectomy and ileal conduit diversion, presented with gross hematuria. He had malignant melanoma diagnosed 10 years prior, with recurrent metastases managed through surgery and adjuvant therapy. During his recent admission, metastases to the subcutaneous tissue and retroperitoneum were noted. Contrast-enhanced computed tomography revealed bilateral hydronephrosis and a tumor in the ileal conduit. Endoscopic resection confirmed metastatic malignant melanoma. The patient's renal function stabilized postoperatively, and hematuria was controlled. A palliative care approach was adopted to treat the melanoma.
Conclusion
This rare case of metastatic malignant melanoma within an ileal conduit highlights the importance of histopathological examinations in patients with overlapping malignancies.
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