Diagnostic value of cardiac magnetic resonance and fluorodeoxyglucose-positron emission tomography for cardiac sarcoidosis with previous myocardial infarction: A case report

Medicine
Masakazu YasudaShunichi Miyazaki

Abstract

Diagnostic difficulty due to overlapped clinical findings exists in cardiac sarcoidosis (CS) patients who also have coronary artery disease. Since cardiac magnetic resonance (CMR) and fluorodeoxyglucose-positron emission tomography (FDG-PET) evaluate different pathological processes, that is, fibrosis and inflammation respectively, the combination may be useful in such a case. A 77-year-old man was admitted due to heart failure and advanced atrioventricular block who was previously diagnosed with cutaneous sarcoidosis and old myocardial infarction (MI) with angiographical evidence. He was finally diagnosed with CS using CMR and FDG-PET by specifying the myocardial lesion of sarcoidosis. He was treated with corticosteroids based on the diagnosis. The focal high uptake on FDG-PET was improved and he had a better clinical course without further cardiac events. Our case suggests that CMR and FDG-PET are complimentary, and the combination is useful for diagnosis of CS, particularly in cases that have previous MI.

References

Jul 1, 1984·Journal of the American College of Cardiology·D FeiglY Kishon
Apr 16, 2005·European Heart Journal·Heiko MahrholdtRaymond J Kim
May 17, 2005·Journal of the American College of Cardiology·Jan-Peter SmedemaHarry J G M Crijns
Dec 18, 2007·European Journal of Nuclear Medicine and Molecular Imaging·Hiroshi OhiraMasaharu Nishimura
Nov 26, 2016·International Journal of Cardiology·Abhijeet B ShelkeCalambur Narasimhan

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