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Non-mass-forming Lymphoma of the Left Ventricle Mimicking Non-ischemic Cardiomyopathy on MR Imaging: A Case Report  

Shin, Won-Seon (Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Kim, Sung-Mok (Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Choe, Yeon-Hyeon (Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Hyeon, Ji-Yeon (Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Kim, Jung-Sun (Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Chang, Sung-A (Division of Cardiology, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Publication Information
Investigative Magnetic Resonance Imaging / v.16, no.2, 2012 , pp. 189-194 More about this Journal
Abstract
We report a case of cardiac lymphoma in a 40-year-old man, who had a mediastinal mass which was diagnosed as sclerosing mediastinitis pathologically. The mediastinal mass caused right pulmonary arterial stenosis. The patient developed myocardial hypertrophy and echocardiography showed restrictive physiology and severely decreased left ventricle ejection fraction, 6 months later. MRI showed global left ventricular myocardial hypertrophy and diffuse late gadolinium hyperenhancement after administration of contrast material. Thus, non-ischemic cardiomyopathy was suspected on MRI. However, pathology confirmed the myocardial abnormality as lymphoma after myocardial biopsy. Because a basal part of the left ventricle and global subendocardial myocardium were not involved on contrast-enhanced delayed MRI, the MRI abnormalities could be differentiated from amyloidosis and other myocardial diseases. The peculiar non-mass forming diffuse hypertrophy pattern of cardiac lymphoma has not been known in the MRI literature.
Keywords
Cardiac lymphoma; Non-ischemic cardiomyopathy; Magnetic resonance imaging (MRI);
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