Histologic diagnosis |
Endomyocardial biopsy demonstrating noncaseating epithelioid granulomas |
Clinical diagnosis |
Among patients with a histologic diagnosis of
extracardiac sarcoidosis, cardiac sarcoidosis should be suspected when
criterion "a" and at least one of criteria "b" to "e" is present in
patients in whom other causes such as hypertension and coronary heart
disease have been excluded: |
a. Complete right bundle branch block, AV block, ventricular tachycardia,
ventricular premature beats or pathologic Q wave or ST-T changes on the
electrocardiogram |
b. Abnormal wall motion, regional wall thickening, or left ventricular dilation |
c. Perfusion defect on myocardial perfusion imaging or abnormal
accumulation of 67-Gallium citrate or 99mTc-PYP myocardial scintigraphy |
d. Abnormal intracardiac pressure, low cardiac, or abnormal wall motion or reduced ejection fraction of the left ventricle |
e. On endomyocardial biopsy, interstitial fibrosis or more than moderate
cellular infiltration, even if the findings are nonspecific |