高倍镜显示，肺泡内充满表面光滑并且泡沫状粉红色物质，这是肺水肿的特征。同时也要注意到肺泡壁毛细血管充血，血管内有许多红细胞。肺淤血和肺水肿在心衰病人身上和肺炎区域比较常见。
At high magnification, the alveoli in this lung are filled with a smooth to slightly floccular pink material characteristic for pulmonary edema. Note also that the capillaries in the alveolar walls are congested with many red blood cells. Congestion and edema of the lungs is common in patients with heart failure and in areas of inflammation of the lung.
