Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes . Cardiomegaly . The cardiomediastinal contour is unchanged . Small right hydro pneumothorax is essentially unchanged in size , but some of the the loculated components show interval decrease in size . The left lung is clear .
    OUTPUT:
    
Small right hydropneumothorax is essentially unchanged in size , but some of the non-apical loculated components show interval decrease in size .