Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP chest radiograph . Left - sided chest tube is in stable position . There is no pneumothorax . Median sternotomy wires are intact . The patient has been extubated and the heart is slightly larger , which is a common finding . The mediastinal drains and IJ catheter have been removed . Mild interstitial edema has improved slightly . Lung volumes are low with increased atelectasis on the left .
    OUTPUT:
    
No pneumothorax . Findings were discussed by Dr . ___ with ___ ( Cardiac surgery ) at 1 :39 p .m . on ___ .