Appearances of Disease:

The specimen consists of the right lung, which has been bisected to display a tumour which arises from the main bronchus, approximately 1 cm below the origin of the upper lobe bronchus, and extends behind the bronchus into the adjacent lymph nodes, forming a tumour mass some 6 cm in diameter. The lower and middle lobes have collapsed secondary to the bronchial obstruction, and the cut surface shows fine, yellow flecking, while the bronchi contain yellowish, thick pus.