{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T23:22:13Z","timestamp":1792624933545,"version":"4.5.0"},"reference-count":82,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2021,1,8]],"date-time":"2021-01-08T00:00:00Z","timestamp":1610064000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Medicina"],"abstract":"<jats:p>The detection of a renal mass is a relatively frequent occurrence in the daily practice of any Radiology Department. The diagnostic approaches depend on whether the lesion is cystic or solid. Cystic lesions can be managed using the Bosniak classification, while management of solid lesions depends on whether the lesion is well-defined or infiltrative. The approach to well-defined lesions focuses mainly on the differentiation between renal cancer and benign tumors such as angiomyolipoma (AML) and oncocytoma. Differential diagnosis of infiltrative lesions is wider, including primary and secondary malignancies and inflammatory disease, and knowledge of the patient history is essential. Radiologists may establish a possible differential diagnosis based on the imaging features of the renal masses and the clinical history. The aim of this review is to present the contribution of the different imaging techniques and image guided biopsies in the diagnostic management of cystic and solid renal lesions.<\/jats:p>","DOI":"10.3390\/medicina57010051","type":"journal-article","created":{"date-parts":[[2021,1,10]],"date-time":"2021-01-10T21:21:45Z","timestamp":1610313705000},"page":"51","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":71,"title":["Imaging Characterization of Renal Masses"],"prefix":"10.3390","volume":"57","author":[{"given":"Carlos","family":"Nicolau","sequence":"first","affiliation":[{"name":"Radiology Department, Hospital Clinic, University of Barcelona (UB), 08036 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8097-7986","authenticated-orcid":false,"given":"Natalie","family":"Antunes","sequence":"additional","affiliation":[{"name":"Radiology Department, Hospital de Santa Marta, 1169-024 Lisboa, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Blanca","family":"Pa\u00f1o","sequence":"additional","affiliation":[{"name":"Radiology Department, Hospital Clinic, University of Barcelona (UB), 08036 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carmen","family":"Sebastia","sequence":"additional","affiliation":[{"name":"Radiology Department, Hospital Clinic, University of Barcelona (UB), 08036 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,1,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"346","DOI":"10.1067\/j.cpradiol.2015.02.001","article-title":"The Role of Contrast Agents in the Diagnosis of Renal Diseases","volume":"44","author":"Nicolau","year":"2015","journal-title":"Curr. 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