Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right - sided PICC has been repositioned and now ends in the mid SVC . The NG tube courses to the stomach , although the tip is excluded from view . Lung volumes remain low . Retrocardiac opacity persists and is consistent with atelectasis and a small pleural effusion as seen on ___ abdomen / pelvis CT . Pulmonary edema has resolved .
    OUTPUT:
    
No evidence of pneumonia . Retrocardiac opacity is consistent with atelectasis and a small pleural effusion as seen on ___ abdomen / pelvis CT .