Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The radiograph is underpenetrated secondary to the patient 's body habitus . Allowing for this limitation , the lungs are well expanded . There are slightly increased interstitial opacities compared with prior chest radiographs , but no focal parenchymal opacity . Moderate cardiomegaly is unchanged . Costophrenic angles are partially obscured potentially from overlying soft tissue / technique versus small effusions . There is no pneumothorax . A left - sided PICC line ends in the lower SVC .
    OUTPUT:
    
Mild interstitial edema in the setting of moderate cardiomegaly . No evidence of pneumonia . PA and lateral views may offer additional detail if desired .