<prompt> Earliest lesion seen in asbestosis isA. Pleura plaquesB. Hilar lymphadenopathayC. Adenoma lungD. Mesothelioma  <response>: It is most common manifestation of asbestos exposure composed of plaques of dense collagen containing calcium. They are usually asymptomatic and develop on anterior and posteriolateral pas of parietal pleura and over the diaphragm Refer robbins 9e 