{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T08:07:09Z","timestamp":1790323629320,"version":"4.1.0"},"reference-count":13,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2026,7,27]],"date-time":"2026-07-27T00:00:00Z","timestamp":1785110400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,7,27]],"date-time":"2026-07-27T00:00:00Z","timestamp":1785110400000},"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>Adrenal oncocytomas are rare, nonfunctioning tumors composed of eosinophilic oncocytic cells whose nonspecific imaging often impedes preoperative diagnosis. We report a case of a large nonfunctioning adrenal oncocytoma with borderline malignant potential, incidentally discovered during cardiac symptom evaluation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case Presentation<\/jats:title>\n                    <jats:p>A 77\u2010year\u2010old man with an incidentally discovered retroperitoneal tumor was referred to Urology for further evaluation. Contrast\u2010enhanced CT revealed a 93\u2010mm lobulated mass with heterogeneous enhancement abutting the left kidney's upper pole. Given the tumor's size, open left nephrectomy and adrenalectomy were performed. Gross and histopathology revealed a yellowish, solid adrenal tumor composed predominantly of oncocytic cells with no invasion of the kidney. Immunohistochemistry revealed a low Ki\u201067 index (approximately 2%). The tumor was classified as having borderline malignant potential (Lin\u2013Weiss\u2013Bisceglia criteria).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>We present a rare case of nonfunctioning adrenal oncocytoma with borderline malignant potential. Long\u2010term follow\u2010up is recommended due to the uncertain malignant potential.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/iju5.70238","type":"journal-article","created":{"date-parts":[[2026,7,28]],"date-time":"2026-07-28T01:20:42Z","timestamp":1785201642000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Giant Adrenal Oncocytoma: A Case Report and Literature Review"],"prefix":"10.1002","volume":"9","author":[{"given":"Kohei","family":"Yamakawa","sequence":"first","affiliation":[{"name":"Department of Urology NTT Medical Center Tokyo  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akihiro","family":"Ono","sequence":"additional","affiliation":[{"name":"Department of Urology NTT Medical Center Tokyo  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ryo","family":"Amakawa","sequence":"additional","affiliation":[{"name":"Department of 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