Cavitation in the massive fibrosis of coal-workers' pneumoconiosis.
D055008:Anthracosis; D003031:Coal; D005355:Fibrosis; D006801:Humans; D011009:Pneumoconiosis / Q000473:pathology*; D011658:Pulmonary Fibrosis / Q000473:pathology*
D003031:Coal
PNEUMOCONIOSES/pathology; PULMONARY FIBROSIS/pathology