Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two portable semi-erect chest radiographs were obtained . NG tube passes into the stomach and extends inferiorly out of the field of view . A right - sided PICC line has been pulled back into the axillary vein . Low lung volumes and extensive bilateral left greater than right alveolar opacities are unchanged . Moderate cardiomegaly is similar .
    OUTPUT:
    
1 . NG tube below the diaphragm . 2 . Right - sided PICC line has been pulled back to the right axillary vein . 3 . The predominant pattern of stable left greater than right diffuse alveolar opacities indicates moderate CHF . Underlying infection can not be excluded .