Diagnosis:
Silicosis
Findings:
Chest x-ray – Multiple tiny nodular opacities in bilateral lung fields HRCT - Well-circumscribed randomly distributed nodules measuring 2- 10 mm in both lungs Conglomerate masses of calcified nodules in right middle lobe & left upper lobe Calcified bilateral hilar & mediastinal lymphadenopathy
Discussion:
Silicosis is an occupational lung disease caused by silica Requires 10-20 years of exposure lung changes can progress even after the individual is removed from the dusty environment Imaging - small rounded centrilobular & peribronchiolar nodules of 2–6 mm, hilar and mediastinal lymphadenopathy with or without calcification (“Eggshell” calcification ), Progressive Massive Fibrosis PMF - conglomeration of nodules to form aggregates >1 cm in diameter
Silicosis
Findings:
Chest x-ray – Multiple tiny nodular opacities in bilateral lung fields HRCT - Well-circumscribed randomly distributed nodules measuring 2- 10 mm in both lungs Conglomerate masses of calcified nodules in right middle lobe & left upper lobe Calcified bilateral hilar & mediastinal lymphadenopathy
Discussion:
Silicosis is an occupational lung disease caused by silica Requires 10-20 years of exposure lung changes can progress even after the individual is removed from the dusty environment Imaging - small rounded centrilobular & peribronchiolar nodules of 2–6 mm, hilar and mediastinal lymphadenopathy with or without calcification (“Eggshell” calcification ), Progressive Massive Fibrosis PMF - conglomeration of nodules to form aggregates >1 cm in diameter