Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-erect chest radiograph ___ at 03 : 50 is submitted .
    OUTPUT:
    
Endotracheal tube , left subclavian PICC line , bilateral pleural pigtail catheters , and nasogastric tube are unchanged , although the tip of the nasogastric tube is not identified . No obvious pneumothorax , although the sensitivity to detect pneumothorax is diminished given semi-erect technique . Slightly worsening patchy opacity at the right base and in the periphery of the left mid lung could reflect atelectasis , although pneumonia and asymmetric pulmonary edema should also be considered . Heart remains stably enlarged . Mediastinal contours are unchanged .