mediastinal hilar lymphadenopathypulmonary hilar adenopathyhypermetabolic mediastinal adenopathyhilar lymphadenopathy symptomspulmonary hilar lymphadenopathymesothelioma in the lungsasbestosis of the lungsthickening of lung lininglining of the lung cancerasbestos in the lungslung cancer pleural liningplaque in lungs