| Clear Cell Renal Cell Carcinoma: Multiphasic Multidetector CT Imaging Features Help Predict Genetic Karyotypes. | |
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MedLine Citation:
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PMID: 22025734 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Purpose:To determine whether imaging characteristics at multiphasic multidetector computed tomography (CT) correlate with common karyotypic abnormalities in patients with clear cell renal cell carcinomas (ccRCCs).Materials and Methods:Institutional review board approval was obtained, and informed consent was waived for this HIPAA-compliant retrospective study. From January 2000 through September 2007, the prenephrectomy multiphasic (corticomedullary, nephrographic, and excretory phases), multidetector helical CT images of 58 histologically proved and karyotyped ccRCCs were reviewed by two readers with experience in abdominal imaging. Imaging features assessed included degree of attenuation, contour, and presence of calcifications and neovascularity. These features were independently correlated with specific karyotypic abnormalities on the resected specimens. Degree of attenuation data were analyzed with logistic regression for significance (P < .05), and morphologic characteristics were analyzed with odds ratios for assessing their diagnostic power.Results:On unenhanced scans, 7% (two of 28) of ccRCCs with the loss of chromosome 3p were calcified, whereas 37% (11 of 30) of lesions without this anomaly were calcified (odds ratio, 0.13). During the corticomedullary phase, ccRCCs with the loss of chromosome Y enhanced more than those without this anomaly (130.0 vs 102.5 HU, P = .04), and ccRCCs with trisomy 7 enhanced less than those without this anomaly (105.8 vs 139.3 HU, P = .04). During the excretory phase, ccRCCs with trisomy 5 enhanced more than those without this anomaly (115.5 vs 83.4 HU, P = .03).Conclusion:The genetic makeup of ccRCCs affects their imaging features at multidetector CT examinations. Multidetector CT imaging characteristics may help suggest differences at the cytogenetic level among ccRCCs.© RSNA, 2011. |
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Authors:
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Steven C Sauk; Margaret S Hsu; Daniel J A Margolis; David S K Lu; Nagesh P Rao; Arie S Belldegrun; Allan J Pantuck; Steven S Raman |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-10-24 |
Journal Detail:
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Title: Radiology Volume: - ISSN: 1527-1315 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-25 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401260 Medline TA: Radiology Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Departments of Radiology, Pathology, and Urology, David Geffen School of Medicine at UCLA, Ronald Reagan UCLA Medical Center, 757 Westwood Blvd, Los Angeles, CA 90095-1721. the 2008 RSNA Annual Meeting. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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