Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in sitting semi-upright position . Analysis is performed in direct comparison with the next preceding similar study of ___ . There is status post sternotomy as before . Significant increase of heart size is observed , but there is no evidence of increased pulmonary vascular congestion . Since the next preceding study of ___ , a left - sided chest tube advanced from below has been removed . The lungs remain well aerated and no pneumothorax can be identified in the apical area of the left - sided hemithorax . Mild degree of blunting of the left lateral pleural sinus is noted .
    OUTPUT:
    
Postoperative increase of heart size to moderate degree , no evidence of pulmonary vascular congestion and no pneumothorax following left - sided chest tube removal . Referring physician , ___ , ___ #___ , was paged at 1 : 15 p .m . , but not available .