HEART - Concentric Fibrosis

This specimen shows a portion of the left ventricle, opened and mounted to display concentric scarring in the central part of the muscle. The scarring extends through all of the exposed muscle. The endocardium shows some pale areas, particularly beneath the aortic valve, and these may also represent scarring. The valves are normal.
This man, who was a sickness beneficiary and possibly a chronic alcoholic, was found collapsed, incoherent, but conscious. He died two days after admission to hospital. At autopsy, he showed bronchopneumonia, which was the cause of death. The heart weighed 320 g. The coronary arteries showed moderate atheroma, but no marked narrowing nor occlusion. The case notes of his last admission show no evidence of cardiac failure. The aetiology of the scarring is obscure.