Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright chest radiograph demonstrates interval placement of a left IJ approach hemodialysis catheter , the tip of which projects over the right atrium . A left upper extremity PICC tip projects over the mid SVC . The tracheostomy tube is in unchanged and standard position . The lungs appear hyperinflated , though this is unchanged . Slightly increased opacities are present in the left more than right upper lobes , otherwise the lung parenchyma is unremarkable .
    OUTPUT:
    
Bilateral air space and interstitial opacities with an upper lobe predominance appear similar or increased from recent priors , which could reflect an atypical distribution of pulmonary edema in this patient with underlying emphysema as documented on the ___ CT ; further follow up chest radiographs will be required to confirm potential early pneumonia .