Circulation Journal
Online ISSN : 1347-4820
Print ISSN : 1346-9843
ISSN-L : 1346-9843
Case Report
Cardiac Sarcoidosis Mimicking Right Ventricular Dysplasia
Jun ShiraishiTetsuya TatsumiKazutoshi ShimooAsako KatsumeHiroki ManiMiyuki KobaraTakeshi ShirayamaAkihiro AzumaMasao Nakagawa
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2003 Volume 67 Issue 2 Pages 169-171

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Abstract

A 59-year-old woman with skin sarcoidosis was admitted to hospital for assessment of complete atrioventricular block. Cross-sectional echocardiography showed that the apical free wall of the right ventricle was thin and dyskinetic with dilation of the right ventricle. Thallium-201 myocardial imaging revealed a normal distribution. Both gallium-67 and technetium-99m pyrophosphate scintigraphy revealed no abnormal uptake in the myocardium. Right ventriculography showed chamber dilation and dyskinesis of the apical free wall, whereas left ventriculography showed normokinesis, mimicking right ventricular dysplasia. Cardiac sarcoidosis was diagnosed on examination of an endomyocardial biopsy specimen from the right ventricle. A permanent pacemaker was implanted to manage the complete atrioventricular block. After steroid treatment, electrocardiography showed first-degree atrioventricular block and echocardiography revealed an improvement in the right ventricular chamber dilation. Reports of cardiac sarcoidosis mimicking right ventricular dysplasia are extremely rare and as this case shows, right ventricular involvement may be one of its manifestations. (Circ J 2003; 67: 169 - 171)

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© 2003 THE JAPANESE CIRCULATION SOCIETY
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