Figure 2From: A stone miner with both silicosis and constrictive pericarditis: case report and review of the literature Imaging and histology of the restrictive pericardium. HE staining (A) of excised pericardium demonstrated granular and fibrous tissue hyperplasia. Acid fast stain was negative. Chest CT (B) found a thickened and constrictive pericardium.Back to article page