Sarcoidosis

Progressive Massive Fibrosis

• Bilateral upper lobe disease

• Calcified mediastinal nodes in CT

• Calcification in the mass like densities in CT

Intriguing case: Patient with silica exposure. Open lung biopsy consistent with sarcoidosis. No significant silica demonstrable. I realize the definition of sarcoidosis is granulomatous disease of unknown etiology of multiple organs. Silica can give rise to granulomas.