{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T23:17:51Z","timestamp":1790983071951,"version":"4.1.0"},"reference-count":15,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"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":["IJU Case Reports"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Bullous pemphigoid is a rare cutaneous, immune\u2010related adverse event, and avelumab\u2010associated cases are extremely rare.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case Presentation<\/jats:title>\n                    <jats:p>A 76\u2010year\u2010old man receiving avelumab maintenance therapy for recurrent renal pelvic carcinoma developed pruritic erythema and tense blisters 20\u2009days after the first dose. Laboratory examination showed eosinophilia, increased immunoglobulin E level, and markedly elevated anti\u2010BP180 antibodies. Moreover, skin biopsy revealed subepidermal blistering with eosinophilic infiltration, supporting drug\u2010associated bullous pemphigoid. Prednisolone (15\u2009mg\/day, increased to 25\u2009mg\/day) led to marked improvement. After the second course, avelumab was discontinued, and no recurrence occurred.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Immune\u2010checkpoint\u2010inhibitor\u2010related, drug\u2010associated bullous pemphigoid can present with nonspecific symptoms before blistering. Thus, urologists should monitor skin changes during immune checkpoint inhibitor therapy and promptly involve dermatology.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/iju5.70240","type":"journal-article","created":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T06:00:14Z","timestamp":1788328814000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Immune\u2010Checkpoint\u2010Inhibitor\u2010Related Bullous Pemphigoid During Avelumab Maintenance Therapy in a Patient With Metastatic Renal Pelvic Carcinoma: A Case Report"],"prefix":"10.1002","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-0605-9972","authenticated-orcid":false,"given":"Taketoshi","family":"Nara","sequence":"first","affiliation":[{"name":"Department of Urology Japanese Red Cross Akita Hospital  Akita 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