Figure 7.

Epicardial collagen plaques (soldier's plaques, milk spots) in the hearts of 4 different patients. (a) Collagen plaques are present over the right ventricle and over the left ventricular apex. (b) A discrete collagen plaque is visible over the right ventricle. (c) Virtually the entire right ventricle and pulmonary trunk are covered by a collagen plaque. (d) The lateral view shows the collagen plaques just beneath the left atrial appendage and over the left ventricular apex. Note that the subepicardial adipose tissue is relatively sparse in the 4 patients. When more subepicardial fat is present, epicardial collagen plaques are less likely to form.