Occurs with mitral stenosis and left sided heart failure.
Pathology: The lung vessels are congested with blood and this leads to pulmonary edema when plasma escapes in alveolar spaces.
Rupture of congested capillaries leads to release of hemosiderin from damaged red blood cells.
When alveolar macrophages engulf hemosiderin they are called heart failure cells.
[1][2][3] This article about a medical condition affecting the respiratory system is a stub.