Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube tip terminates approximately 4 .1 cm from the carina . An enteric tube tip is within the stomach . Heart size is mildly enlarged . The aortic knob is calcified . The mediastinal and hilar contours are within normal limits . There is no pulmonary edema . Minimal blunting of the right costophrenic sulcus to suggest presence of a trace right pleural effusion . Patchy atelectasis is seen in the retrocardiac region . No focal consolidation or large pneumothorax is demonstrated . No acute osseous abnormality is visualized .
    OUTPUT:
    
1 . Endotracheal and enteric tubes in standard positions . 2 . Minimal retrocardiac atelectasis . Possible trace right pleural effusion .