title: Unusual manifestations of renal cell carcinoma.
abstract: The imaging characteristics of renal cell carcinoma (RCC) vary widely, with masses ranging from cystic to solid, from homogeneous to heterogeneous and necrotic, from small to large, and from localized to extensive. Although the usual imaging features of RCC are well known to radiologists, various unusual imaging features can be particularly misleading; therefore, both usual and unusual imaging features should always be carefully assessed. In this pictorial review, we describe the following unusual imaging features: unusual subtypes, unusual tumor growth, unusual underlying disease, multiple and bilateral presentations, hemorrhage and arteriovenous fistula (AVF)-related presentations, and mimicking of benign tumors. Familiarity with the imaging features of both usual and unusual RCCs will facilitate prompt and accurate diagnosis and treatment.
authors.affiliation: Department of Radiology, Ulsan University Hospital, University of Ulsan, Ulsan, Korea. pksungbin@paran.com
authors.forename: Sung Bin
authors.initials: SB
authors.lastname: Park
authors.forename: Kyoung-Sik
authors.initials: KS
authors.lastname: Cho
authors.forename: Jong Hwa
authors.initials: JH
authors.lastname: Lee
authors.forename: Yoong Ki
authors.initials: YK
authors.lastname: Jeong
authors.forename: Seong Hoon
authors.initials: SH
authors.lastname: Choi
authors.forename: Byeong Seong
authors.initials: BS
authors.lastname: Kang
authors.forename: Jeong Kon
authors.initials: JK
authors.lastname: Kim
mesh_terms: D002292:Carcinoma, Renal Cell / Q000000981:diagnostic imaging* / Q000473:pathology; D003287:Contrast Media; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D003287:Contrast Media