To the Editor.
—The article by Cepin et al in the January Archives (1983;143: 142-144) deserves emphasis. The finding of filling defect in the myocardium in a patient with no systemic sarcoidosis and the establishment of the correct diagnosis of cardiac sarcoidosis in vivo is to be commended.What remains unexplained is the lack of correlation between the radiologic and echocardiographic findings. The patient's chest roentgenogram on admission to the hospital showed an enlarged cardiac silhouette but M-mode and two-dimensional echocardiography failed to disclose enlargement of the cardiac cavities, except for the left atrium.The echocardiographic report also failed to report thickening of the myocardial walls. A small amount of pericardial effusion does not seem to have decisively contributed to the cardiac enlargement. Reevaluation of the echocardiograms might clarify the apparent discrepancy between the data obtained by both techniques.Another point of contention is the authors' incomplete discussion of the