Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The hilar contours are normal . The pulmonary vasculature is normal . No pleural effusion or pneumothorax . Irregularly - shaped right paratracheal opacity has well defined borders with a smaller semicircular area of higher density projecting over it and appearing to arise from the spine .
    OUTPUT:
    
1 . Right paratracheal opacity may represent a pulmonary parenchymal process or bone mass . Correlation with prior imaging studies is needed as this opacity is not seen on any imaging currently available in our ___ PACS . Otherwise , apical lordotic view radiograph is recommended . 2 . No hilar lymphadenopathy .