Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Single - lead left - sided pacemaker is again seen with lead extending to the expected position of the right ventricle . Again seen is a right pleural effusion with overlying atelectasis , underlying consolidation can not be excluded . There is mild left base atelectasis . There is mild prominence of the central pulmonary vasculature . The cardiac silhouette size can not be accurately assessed due to the right base opacity . The aortic knob appears calcified . Moderate anterior wedge compression of a vertebral body , approx level of L1 , new since ___ , otherwise indeterminate age .
    OUTPUT:
    
Right basilar opacity likely due to a combination of pleural effusion and underlying atelectasis with possible underlying consolidation . Due to persistent right base opacification without evidence of prior chest CT performed here , nonurgent chest CT should be considered to assess for underlying lesion . Moderate anterior wedge compression of a vertebral body , approx level of L1 , new since ___ , otherwise indeterminate age .