This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Interstitial Lung Disease, Subject name: Medicine
[{'content': 'Conglomerate nodules are found in? \nSelect and explain. \nA. Pulmonary lymphangioleiomyomatosis, B. Round pneumonia, C. Silicosis, D. Hypersensitivity pneumonitis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Conglomerate shadows are seen in silicosis. On continued dust exposure, the nodules increase in size and number ultimately covering most pas of the lungs. With coalescence of the nodules, the upper lobes become fibrotic and contract making the conglomerate nodules to migrate towards the hilar areas. CXR findings in Silicosis:- Snow storm appearance of lung fields. Hilar lymphadenopathy Crazy paving pattern on HRCT. Egg-shell calcifications of the lymph nodes is strongly suggestive of silicosis. Nodular opacities can enlarge and coalesce forming conglomerate shadows. Progressive massive fibrosis', 'role': 'assistant'}]