267857.fig.002a
(a)
267857.fig.002b
(b)
Figure 2: Bronchoalveolar lavage fluid showing numerous hemosiderin-laden macrophages (siderophages) stained positive with Prussian blue ((a) and (b)) as well as clusters of destroyed erythrocytes (b) indicative of alveolar hemorrhage. Cytometric analysis revealed almost 40% of siderophages of the total number of alveolar macrophages.