The velvet myocardium: potential harbinger of death in acute myocarditis?
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Updated: May 5, 2026

Noninvasive Assessment of Cardiac Abnormalities in Experimental Autoimmune Myocarditis by Magnetic Resonance Microscopy Imaging in the Mouse
Published on: June 20, 2014
Amer M Johri1, Walid Barake, Bredon Crawford
1Department of Medicine, Division of Cardiology, Queen's University, Kingston, Ontario, Canada.
Abstract:
A case of fulminant myocarditis in a young man is described. Bedside hand-held focused cardiac ultrasound demonstrated severe systolic dysfunction with hypertrophied myocardium. Echocardiogram showed a speckled texture of the myocardium and a "velvet-like" appearance. Unfortunately, the patient developed cardiogenic shock and despite aggressive management, he died. The autopsy showed multifocal lymphohistiocytic infiltration and myocyte injury. We propose that the "velvet" myocardial ultrasonic appearance with ventricular hypertrophy is an indicator of rapid clinical demise.
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