Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are obtained . Dual - lead left - sided pacemaker is again seen with leads extending to the expected positions of the right atrium and right ventricle . Status post median sternotomy and CABG . There are low lung volumes , which accentuate the bronchovascular markings . Given this , there is mild pulmonary vascular congestion . No focal consolidation or pleural effusion is seen . There is no evidence of pneumothorax . The cardiac and mediastinal silhouettes are stable . Old fracture deformity of the posterior right seventh rib is again seen . Slight opacity in this region was seen since ___ , and likely relates to osseous deformity . Underlying pulmonary nodular opacity can not be entirely excluded , if this is clinically relevant , given patient age , further evaluation with chest CT could be obtained .
    OUTPUT:
    
1 . Low lung volumes and mild pulmonary vascular congestion . 2 . Old posterior right seventh rib fracture deformity with slight opacity projecting over this location , likely relating to the osseous deformity ; however , underlying pulmonary nodule can not be entirely excluded and if clinically relevant , given patient 's age , patient 's chest CT could be obtained for further evaluation .