{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T22:09:18Z","timestamp":1784758158227,"version":"3.55.0"},"reference-count":56,"publisher":"Oxford University Press (OUP)","license":[{"start":{"date-parts":[[2020,5,28]],"date-time":"2020-05-28T00:00:00Z","timestamp":1590624000000},"content-version":"am","delay-in-days":1,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"name":"Minneapolis Medical Research Foundation, Minneapolis, MN"},{"name":"National Cancer Institute: California","award":["HHSN261201000036C"],"award-info":[{"award-number":["HHSN261201000036C"]}]},{"name":"National Cancer Institute: California","award":["HHSN261201000035C"],"award-info":[{"award-number":["HHSN261201000035C"]}]},{"name":"National Cancer Institute: California","award":["HHSN261201000034C"],"award-info":[{"award-number":["HHSN261201000034C"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Immunosuppressed solid organ transplant recipients (SOTRs) have elevated rates of certain rare cancers caused by viruses. Evaluating risk of rare cancers among SOTRs may provide etiological clues for additional cancers linked to poor immunity and viral infections.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\u00a0We performed a cohort study of 262\u2009455 SOTRs (1987-2014) from the US SOTR registry linked to 17 population-based cancer registries. First cancers in SOTRs were categorized using an established classification scheme based on site and histology. Standardized incidence ratios (SIRs) compared risk in SOTRs with the general population. We used Poisson regression to calculate incidence rate ratios according to immune-related SOTR characteristics, including time since transplant (ie, duration of immunosuppression). All statistical tests were 2-sided.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>We examined 694 distinct cancer subtypes, with 33 manifesting statistically significantly elevated SIRs (Bonferroni P\u2009&amp;lt;\u20097.2 \u00d7 10\u20135). All 33 are rare (incidence &amp;lt;6 per 100\u2009000 person-years) and several have known viral etiology (eg, Merkel cell carcinoma: SIR = 24.7, 95% confidence interval [CI] = 20.8 to 29.1). Additional cancers that were increased include squamous cell carcinomas of the lip (SIR range = 18.3-19.8), eye and adnexa (SIR = 13.8, 95% CI = 7.9 to 22.3), salivary gland (SIR = 9.3, 95% CI = 6.1 to 13.5), and nasal cavity and sinuses (SIR = 4.5, 95% CI = 2.8 to 6.8); sebaceous adenocarcinoma (SIR = 34.3, 95% CI = 26.3 to 44.0); malignant fibrous histiocytoma (15.4); and subtypes of bladder, kidney, lung, and colon cancer (SIR range = 3.2-13.3). Incidence of several cancers increased over time since transplant (Ptrend &amp;lt; .05), including squamous cell carcinomas of the lip, salivary gland, and anogenital sites.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>SOTRs experience elevated rates of several rare cancers. Because some of these cancers exhibit aggressive behavior with poor outcomes, it is important to further characterize the role of immunity and the potential involvement of oncogenic viruses to improve prevention and treatment.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/jnci\/djaa078","type":"journal-article","created":{"date-parts":[[2020,5,21]],"date-time":"2020-05-21T15:17:59Z","timestamp":1590074279000},"source":"Crossref","is-referenced-by-count":21,"title":["Risk of Rare Cancers Among Solid Organ Transplant Recipients"],"prefix":"10.1093","author":[{"given":"Monica E","family":"D\u2019Arcy","sequence":"first","affiliation":[{"name":"Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1932-4342","authenticated-orcid":false,"given":"David","family":"Castenson","sequence":"additional","affiliation":[{"name":"Information Management 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