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Computed tomography (CT) analysis is recommended before and after biologic therapy to exclude the possibility of comorbid infections and malignancies; incidental findings are often detected in asymptomatic patients. In this study, we analyzed the common incidental findings on CT in 227 patients with psoriasis on biologic therapy and 219 living\u2010kidney transplant donors at our hospital. Incidental findings on CT were observed in 176 (77.5%) patients with psoriasis. The most common were fatty liver (82 patients, 36.1%), urolithiasis (54 patients, 23.8%), pulmonary lesions (47 patients, 20.7%), gallstones or postoperative gallstones (38 patients, 16.7%), liver cysts (36 patients, 15.9%), renal cysts (33 patients, 14.5%), and colonic diverticulum (22 patients, 9.7%), which were observed in 38 (17.4%), eight (3.7%), 68 (31.1%), 12 (5.5%), 58 (26.5%), 88 (40.2%), and 10 (4.6%) donors, respectively. The prevalence of fatty liver, urolithiasis, gallstones, and postoperative gallstones was significantly higher in patients with psoriasis. Multivariate logistic regression showed that psoriasis was a risk factor for fatty liver disease, urolithiasis, and gallstones. Currently, incidental findings on CT in patients with psoriasis have not been well studied. The results of this survey will lead to increased awareness of the incidental findings on CT as a complication of psoriasis.<\/jats:p>","DOI":"10.1111\/1346-8138.16843","type":"journal-article","created":{"date-parts":[[2023,5,30]],"date-time":"2023-05-30T06:43:41Z","timestamp":1685429021000},"page":"1045-1051","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Single\u2010center survey of incidental imaging findings on computed tomography in patients with psoriasis on biologic therapy"],"prefix":"10.1111","volume":"50","author":[{"given":"Natsuko","family":"Sugihara","sequence":"first","affiliation":[{"name":"Department of Dermatology Jichi Medical University  Shimotsuke Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7938-1947","authenticated-orcid":false,"given":"Koji","family":"Kamiya","sequence":"additional","affiliation":[{"name":"Department of Dermatology 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