<prompt> Recognized features of asbestosis do not include:Calcification of pleuraEggshell calcification of hilar lymph nodesClubbing of fingersRestrictive pattern of ventilatory defect shown by pulmonary function  <response>: 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 