Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single lead left - sided AICD is seen with lead extending the expected location of the right ventricle . Status post median sternotomy . Increased interstitial markings again seen bilaterally consistent with chronic lung disease , although appear slightly more prominent compared to the prior study which may be due to component of superimposed pulmonary edema . No pleural effusion is seen . Cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Single lead left - sided AICD is seen with lead extending the expected location of the right ventricle . Status post median sternotomy . Increased interstitial markings again seen bilaterally consistent with chronic lung disease , although appear slightly more prominent compared to the prior study which may be due to component of superimposed pulmonary edema . No pleural effusion is seen . Cardiac and mediastinal silhouettes are stable .