Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views have been obtained with patient in upright position . Analysis is performed in direct comparison with the next preceding portable chest examination of ___ . There is status post sternotomy and the presence of surgical clips in the left anterior mediastinum are indicative of previous bypass surgery . The heart size is at the upper limit of normal variation without typical configurational abnormality . Unremarkable appearance of thoracic aorta . The pulmonary vasculature is not congested . No evidence of acute pulmonary infiltrates . There is a left - sided lateral obliterated pleural sinus at the lower lateral chest wall indicative of old pleural scars , probably related to previous bypass surgery , which showed pleural effusions postoperatively on examination of ___ . Absence of any blunting in the posterior pleural sinus speaks against acute pleural effusion and identifies the area as a pleural scar .
    OUTPUT:
    
Status post bypass surgery , pleural scar , no evidence of acute pulmonary infiltrates or pleural effusions in this patient with cough and chills .