Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval removal of the endotracheal tube . No change in the position of a left subclavian catheter , which terminates in the mid portion of the SVC . Stable low lung volumes . Retrocardiac opacity seen best on the lateral view . No pleural effusion or pneumothorax . No pneumomediastinum . Stable enlargement of the cardiomediastinal silhouette and prominent pulmonary vasculature . The hila are unremarkable .
    OUTPUT:
    
1 . New retrocardiac opacity , most consistent with pneumonia given the clinical history of new - onset fever . 2 . Stable enlarged heart and prominent pulmonary vasculature .