Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable frontal chest radiograph demonstrates interval removal of enteric and endotracheal tube . A right PICC is seen terminating at the mid SVC . As compared to chest radiograph ___ , there are improved lung volumes with persistent but small bilateral pleural effusions . The lungs are grossly clear . Severe cardiomegaly is chronic .
    OUTPUT:
    
Improved lung volumes . No significant changes .