title: Characterization of renal cell carcinoma, oncocytoma, and lipid-poor angiomyolipoma by unenhanced, nephrographic, and delayed phase contrast-enhanced computed tomography.
abstract: The purpose of this study was to assess the characterization of renal cell carcinoma (RCC) and benign renal tumors by unenhanced, nephrographic, and delayed phase computed tomography (CT). The study group consisted of 129 renal tumors including 79 clear cell RCCs, 17 papillary RCCs, 6 chromophobe RCCs, 21 oncocytoma, and 6 lipid-poor angiomyolipomas (AMLs). CT studies were retrospectively reviewed. Our results suggested that it was possible to discriminate clear cell RCC from papillary RCC, chromophobe RCC, and lipid-poor AML. CT findings of oncocytoma overlapped with both clear cell and non-clear cell RCCs, although oncocytoma more commonly became homogeneous in the delayed phase.
authors.affiliation: Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA. Electronic address: Ishigamikousei@aol.com.
authors.forename: Kousei
authors.initials: K
authors.lastname: Ishigami
authors.affiliation: Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA.
authors.forename: Marius G
authors.initials: MG
authors.lastname: Pakalniskis
authors.affiliation: Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA.
authors.forename: Leandro V
authors.initials: LV
authors.lastname: Leite
authors.affiliation: Department of Urology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA.
authors.forename: Daniel K
authors.initials: DK
authors.lastname: Lee
authors.affiliation: Department of Pathology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA.
authors.forename: Danniele G
authors.initials: DG
authors.lastname: Holanda
authors.affiliation: Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA.
authors.forename: Maheen
authors.initials: M
authors.lastname: Rajput
mesh_terms: D018249:Adenoma, Oxyphilic / Q000000981:diagnostic imaging* / Q000473:pathology; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D018207:Angiomyolipoma / Q000000981:diagnostic imaging* / Q000473:pathology; D002292:Carcinoma, Renal Cell / Q000000981:diagnostic imaging* / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012189:Retrospective Studies; D012680:Sensitivity and Specificity
keywords: Computed tomography; Lipid-poor angiomyolipoma; Oncocytoma; Renal cell carcinoma