Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in semi-upright position . Heart size is at the upper limit of normal variation , but no configurational abnormality is present . Pulmonary vasculature is not congested . Thoracic aorta is somewhat prominent with calcium deposit in the wall at the level of the arch . No other mediastinal abnormalities are present . The lungs are clear bilaterally without evidence of acute pneumonic infiltrates as possibly can be identified on single view examination . Lateral pleural sinuses are free . No pneumothorax in apical area . A thin wire is overlying the left lower neck region and overlies the mediastinal structures . It most likely represents a nerve stimulation wire placed by anesthesia . Our records include a previous chest examination of ___ . Existed a small basal plate atelectasis on the left side , but this has normalized .
    OUTPUT:
    
No evidence of acute pneumonic infiltrate on portable chest examination .