Pulmonary Alveolar Proteinosis in Setting of Inhaled Toxin Exposure and Chronic Substance Abuse

Figure 2

(a) Papanicolaou-stained smear of BAL fluid (lower magnification). (b) Papanicolaou-stained smear of BAL fluid (higher magnification) showing amorphous globules and alveolar histiocytes (likely macrophages) with dense intracellular proteinaceous material. (c) Paucicellular, amorphous globules staining orange, green, and green with orange centre under Papanicolaou-stain (higher magnification).

(a)

(b)

(c)