Radiography, CT and FDG PET of a pulmonary amyloid nodule

Pulmonary amyloid. Chest radiograph lateral view (A) shows a nodule (circle) in the retrocardiac region. CT (B) and FDG PET (C) images of the chest shows a 12 mm non-FDG avid nodule (arrow) in the left lower lobe confirmed to be amyloid on pathology.