Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP supine chest film ___ at 16 15 is submitted .
    OUTPUT:
    
Hardware once again is seen overlying the lower cervical and upper thoracic spine . A tracheostomy tube is in place , although it is partially obscured by the spinal hardware . The left PICC line continues to have its tip in the azygos vein . The position of this line has previously been communicated by phone to ___ , the patient 's nurse , on ___ at 12 : 14 . Incidental note is made of an azygos lobe . There are small layering effusions with patchy bibasilar opacities , left greater than right , suggestive of atelectasis . Overall , there is improved aeration at the right base . No pneumothorax , although the sensitivity to detect pneumothorax is diminished given supine technique . No pulmonary edema .