Abstract
Experimental animals which survive the acute pneumonitis that follows the inhalation of Cd fume develop a perivascular and peribronchial fibrosis. Such fibrosis has not yet been described in man. When a severe case of scute Cd pneumonitis occurred in a welder, lung function tests were performed and chest radiographs were taken during the subsequent 4 years in order to observe whether changes signifying the onset of pulmonary fibrosis would develop. The patient''s lung function improved for 6 months after the accident, and during the subsequent 3 years there was no deterioration.