MR IMAGING OF HYPERVASCULAR LESIONS IN THE CIRRHOTIC LIVER
Doaa Fawzy Ibrahim Ismail;
Abstract
Hypervascularfocal lesions of the liver are frequent.Although characterization of hypervascular lesions is difficult, it is a key step in disease management.
Because of its high contrast resolution, MRI, using fast imaging technique, non-specific and liver-specificcontrast agents, is a very powerful modality forthe detection and characterization of hypervascular focal hepatic lesions.
Even in verycomplicated cases, an analysis of signal intensitydata and dynamic enhancement patternsafter intravenous contrast administration andthe status of the remainder of the liverallows for an accurate differential diagnosis ofhypervascularfocal lesions.
If chronic liver disease is present, the differentialdiagnosis includes mimics, HCC, and NRH.
Mimics—Regenerative nodules, dysplastic nodules and Transient hepatic enhancement difference are the most common lesions that require differentiationfrom HCC in chronic liver disease.Regenerative nodules are typically isointense relative to the liver with all sequences.Dysplastic nodules may show hypervascularitywithout washout or a capsule (unlikeHCC) and are generally T2 hypointense ratherthan hyperintense.
Because of its high contrast resolution, MRI, using fast imaging technique, non-specific and liver-specificcontrast agents, is a very powerful modality forthe detection and characterization of hypervascular focal hepatic lesions.
Even in verycomplicated cases, an analysis of signal intensitydata and dynamic enhancement patternsafter intravenous contrast administration andthe status of the remainder of the liverallows for an accurate differential diagnosis ofhypervascularfocal lesions.
If chronic liver disease is present, the differentialdiagnosis includes mimics, HCC, and NRH.
Mimics—Regenerative nodules, dysplastic nodules and Transient hepatic enhancement difference are the most common lesions that require differentiationfrom HCC in chronic liver disease.Regenerative nodules are typically isointense relative to the liver with all sequences.Dysplastic nodules may show hypervascularitywithout washout or a capsule (unlikeHCC) and are generally T2 hypointense ratherthan hyperintense.
Other data
| Title | MR IMAGING OF HYPERVASCULAR LESIONS IN THE CIRRHOTIC LIVER | Other Titles | دورالرنين المغناطيسى فى تصوير البؤر كثيفة الأوعيه الدموية فى تليف الكبد | Authors | Doaa Fawzy Ibrahim Ismail | Issue Date | 2014 |
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