{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,25]],"date-time":"2026-05-25T04:04:32Z","timestamp":1779681872309,"version":"3.53.1"},"reference-count":20,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2026,5,10]],"date-time":"2026-05-10T00:00:00Z","timestamp":1778371200000},"content-version":"vor","delay-in-days":9,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T00:00:00Z","timestamp":1777593600000},"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":[[2026,5]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Testicular cancer primarily affects men of reproductive age. Therefore, fertility preservation is important in managing testicular cancer. In patients with a solitary testis, oncological testicular sperm extraction (onco\u2010TESE) is used to retrieve sperm from tumor\u2010bearing testis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case Presentation<\/jats:title>\n                    <jats:p>A 39\u2010year\u2010old man with congenital absence of the left testis presented with a 4\u2010month history of progressive right testicular swelling. Laboratory tests showed elevated \u03b2\u2010human chorionic gonadotropin and follicle\u2010stimulating hormone concentrations, and ultrasonography showed a heterogeneous hypoechoic mass with microcalcifications. A seminal analysis showed azoospermia with AZFc partial deletion. Following orchiectomy, microsurgical onco\u2010TESE was performed. Motile sperm were successfully retrieved from preserved seminiferous tubules. A pathological examination demonstrated a pure seminoma. In preserved seminiferous tubules, the Johnsen score was 9\u201310, and\u00a0partial tubular hyalinization and microcalcifications were observed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Microsurgical onco\u2010TESE is for retrieving sperm in patients with testicular cancer with a solitary testis, even in the presence of impaired spermatogenesis.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/iju5.70191","type":"journal-article","created":{"date-parts":[[2026,5,11]],"date-time":"2026-05-11T00:19:42Z","timestamp":1778458782000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Microsurgical Onco\u2010Testicular Sperm Extraction in a Patient With Testicular Cancer and Congenital Unilateral Testicular Absence: A Case Report"],"prefix":"10.1002","volume":"9","author":[{"given":"Yuki","family":"Matsumoto","sequence":"first","affiliation":[{"name":"Department of Urology Nagano Red Cross Hospital  Nagano Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9640-8718","authenticated-orcid":false,"given":"Toshiyasu","family":"Amano","sequence":"additional","affiliation":[{"name":"Department of Urology Nagano Red Cross Hospital  Nagano Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mamoru","family":"Hachiya","sequence":"additional","affiliation":[{"name":"Department of Urology Nagano Red Cross Hospital  Nagano Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomohisa","family":"Fujita","sequence":"additional","affiliation":[{"name":"Center for Reproductive Medicine Nagano Red Cross Hospital  Nagano Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tetsuya","family":"Imao","sequence":"additional","affiliation":[{"name":"Department of Urology Nagano Red Cross Hospital  Nagano 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Meta\u2010Analysis of the Relationship Between Testicular Microlithiasis and Incidence of Testicular Cancer","volume":"12","author":"Wang T.","year":"2015","journal-title":"Urology Journal"},{"key":"e_1_2_10_21_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12610-024-00238-x"}],"container-title":["IJU Case 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