Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart is mildly enlarged . Indistinct pulmonary vasculature and prominent interstitial opacities are compatible with vascular congestion . Blunting of the left costophrenic angle is compatible with a small pleural effusion . Retrocardiac opacity is compatible with adjacent atelectasis , although infection is not excluded . Wedge compression deformity of a vertebral body at the thoracolumbar junction is similar to the prior exam . Chronic deformity of the left humeral head is stable . No radiopaque foreign body .
    OUTPUT:
    
Mild pulmonary vascular congestion with small left pleural effusion and retrocardiac opacity which likely represents atelectasis .