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Gastrointestinal Imaging |
1 Departments of Radiology (V.V., M.L., A.D., Y.M.)
2 Hepatology (D.V.)
3 Pathology (J.F.F.)
4 Digestive Surgery (J.B.), Hôpital Beaujon, 100 bd du General Leclerc, 92118 Clichy, France
5 Department of Digestive Surgery, Hôpital Antoine Beclere, Clamart, France (C.V.).
PURPOSE: To analyze the imaging features of nodules associated with Budd-Chiari syndrome.
MATERIALS AND METHODS: The authors retrospectively studied images obtained in 23 patients with liver nodules who were being followed up for Budd-Chiari syndrome. Doppler ultrasonography was performed in all patients, computed tomography in 16, and magnetic resonance (MR) imaging in 20. The following lesion features were evaluated: location, number, size, vascularization, qualitative signal intensity at MR imaging, and homogeneity. Nodules were diagnosed on the basis of histopathologic findings or clinical and biologic data with no change at imaging during 2-year follow-up.
RESULTS: All patients had histopathologic features of chronic Budd-Chiari syndrome. Four patients had hepatocellular carcinoma (HCC), with one to three lesions. The mean diameter of the largest HCC lesion in each patient was 7.3 cm. All HCC lesions were heterogeneous and had high signal intensity on T2-weighted MR images. Nineteen patients had multiple benign regenerative nodules, most of which were smaller than 4 cm. Most nodules were homogeneous and hyperintense on T1- and T2-weighted images. In 15 patients, nodules were hypervascular in the arterial phase.
CONCLUSION: In patients with chronic Budd-Chiari syndrome, multiple (>10) small (<4-cm) lesions are suggestive of benignity.
Index terms: Hepatic veins, thrombosis, 761.659 • Liver, CT, 761.1211 • Liver, MR, 761.12143 • Liver, nodules, 761.3198 • Liver, US, 761.1298 • Liver neoplasms, blood supply • Liver neoplasms, diagnosis, 761.3198, 761.323
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