PAP in patient 3.I.1. Computed tomography (left) demonstrates significant bilateral airspace disease. Histopathology (right) demonstrates excessive accumulation of amorphous proteinaceous material in the alveolar spaces. Images were taken using an Olympus Bx41 microscope, objectives UPlanFI 40×/0.75 ∞/0.17, and UPlanFI 20×/05.0 ∞/0.17, with an adaptor U-TV0.5×C using a digital camera Q-imaging Micropublisher 5.0RTV. The images were captured using Q-Capture Version 3.1 and imported into Adobe Photoshop 7.0.