PMC4293899_01
Electrocardiograms of a lamb affected with FMD showing tachy-arrhythmia accompanied by multifocal ventricular premature beats (A) and ventricular fibrillation (B) 15 minutes later. Strip (C) is showing normal ECG of a lamb Base-apex lead, speed 25 mm per sec
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F1
ECGs were evaluated for heart rate and rhythm and abnormalities of conduction. Electrocardiograms showed sinus tachycardia, multifocal ventricular premature beats and ventricular fibrillation (Fig. 1).
Widespread subepicardial pale areas of necrosis in a lamb with FMD.
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F2
The size and shape of those lesions was variable and ranged from 3 to 23mm in diameter (Fig. 2).
Hyaline degeneration (asterisk) and coagulative necrosis (arrows) of cardiac myocytes. H & E, 320x.
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F3
Cellular infiltration was composed of neutrophils and mononuclear cells (Figs. 3 and 4).
Coagulative necrosis and fragmentation of cardiac myocytes (asterisk) associated with inflammatory infiltration in interstitial space (arrows), H & E, 640x.
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F4
Cellular infiltration was composed of neutrophils and mononuclear cells (Figs. 3 and 4).