Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen are multiple median sternotomy wires and mediastinal surgical clips . Moderate cardiomegaly is stable . There is a tortuous thoracic aorta . The bilateral hila are unremarkable . The lungs are clear without focal consolidation . There is no evidence of pulmonary edema . There may be a trace left pleural effusion . There is no right pleural effusion . There is no pneumothorax . Cervical fixation hardware is partially visualized .
    OUTPUT:
    
Possible trace left pleural effusion . No focal consolidation .