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
Recognized features of asbestosis do not include: 
Select and explain. 
A. Calcification of pleura, B. Eggshell calcification of hilar lymph nodes, C. Clubbing of fingers, D. Restrictive pattern of ventilatory defect shown by pulmonary function
B: Eggshell calcification of hilar lymph nodes
Answer: B: Eggshell calcification of hilar lymph nodes 
Explanation: Features of asbestosis include - clubbing, restrictive pulmonary function, calcification of pleura.Egg shell calcification is not seen in asbestosis. Causes of eggshell calcification in CXR: Treated lymphoma: (post-irradiation Hodgkin disease) usually 1-9 years following treatment Coal workers' pneumoconiosis (CWP) Scleroderma Amyloidosis Blastomycosis Silicosis