A 68-year-old female with congestive hea failure and progressive breathing problems Histologic sections of lung tissue is given below. These "hea failure cells" originate from alveolar?

The following HPE reveal numerous hemosiderin-laden cells within the alveoli. In the lung, alveolar macrophages can phagocytize the red blood cells that accumulate in alveoli in individuals with congestive hea failure. These cells contain hemosiderin and are referred to as "hea failure cells." Reference: Robbins & Cotran Pathologic Basis of Disease, 9edition.