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C-3143 - Focal liver lesion characterisation with current cross-sectional imaging: a comparison study with imaging-guided biopsy

J. Felício Costa, F. D. Figueiredo, R. Lameiras, J. Cruz, A. Matos, R. Camacho, M. Ramalho; Almada/PT Type: Scientific Exhibit
Area of Interests: Liver, Interventional non-vascular, Abdomen
Imaging Techniques: CT, MR
Procedures: Biopsy, Diagnostic procedure
Special Focuses: Neoplasia, Metastases, Tissue characterisation
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Aims and objectives: The liver is a common location for various benign and malignant lesions. With the steady volume increase in cross-sectional imaging studies being performed, focal liver lesions (FLL) are increasingly frequent incidental findings in otherwise asymptomatic patients. Accurate and reliable characterizat[...]

Methods and materials: Population This retrospective, longitudinal, observational cohort study was performed following approval by the Institutional Review Board with waiver of informed consent. A consecutive search through the institution histopathological records between January 2009 and April 2012 for biopsies and surg[...]

Results: The reference standard identified 46 (58,2%) metastases, 10 (12,7%) undetermined adenocarcinomas, 7 (8.9%) hepatocellular carcinomas (HCC), 4 (5.1%) abscesses, 4 (5.1%) non-Hodgkin’s lymphomas, 3 (3.8%) focal nodular hyperplasias (FNH), 2 (2.5%) biliary hamartomas, 1 (1.3%) hydatid cyst, 1 (1.3%) he[...]

Conclusion: The overall performance of MDCT was lower than the other two techniques. The evaluation of subgroup analysis and of patients submitted to the three diagnostic methods favoured the diagnostic performance of MRI. Our results suggest that if a patient has a background of malignancy, there is no added v[...]

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References: [1] N. Chalasani, J. a Marrero, J. Ahn, and K. Rajender Reddy, “ACG Clinical Guideline: The Diagnosis and Management of Focal Liver Lesions.,” Am. J. Gastroenterol., no. November 2013, pp. 1–20, 2014. [2] R. C. Semelka, D. R. Martin, C. Balci, and T. Lance, “Focal liver lesions: Comparison of dual[...]

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