PMC5440607_01
Gross necropsy: Heart (A: External view; B: Internal view) of a Malayan tapir with encephalomyocarditis virus infection. Multiple circular to linear white foci (mineralisation) are present in the myocardium.
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F1
Gross post-mortem examination revealed a normal body condition (body weight of 130 kg) and the following salient findings: white foam in nostrils; about 1 litre abdominal serohaemorrhagic fluid containing some fibrin clots; spumeous liquid in the trachea; congestion of the lungs; large pale liver areas with central degeneration; areas of mucosal congestion in the duodenum and jejunum with a greyish to chocolate brown liquid content, but without visible blood present; congestion of the mesenterial lymph nodes; soft kidney consistency with a pale cortex; and with the most important findings was the presence of multiple white circular and linear foci of up to 0.5 cm diameter in the myocard (Fig. 1).
Histopathology of the heart of a Malayan tapir with encephalomyocarditis virus infection. (A): Areas of basophilia (mineralisation) are surrounded by an intense interstitial inflammatory infiltrate. (B): Myocardial cells with a diffuse basophilic granulation (mineralisation), surrounded by interstitial infiltration of lymphocytes, plasma cells and a few neutrophils.
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F2
Surrounding the mineralised areas was interstitial infiltration of lymphocytes, plasma cells and less neutrophils (Fig. 2).