Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right Port -A - Cath tip projects over the expected region of the SVC chest right junction , unchanged . Left subclavian approach catheterization tip projects over the expected region of the upper-mid SVC , unchanged . Lung volumes are improved in the interim . The edema is mild . Hazy opacification of the lower lungs suggest basilar atelectasis . However , subtle increased opacity in the right lower lung could reflect a concurrent pneumonia or aspiration , but this has been unchanged since ___ . Elevation of the right hemidiaphragm is unchanged . No pneumothorax . The cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
Subtle asymmetric increased opacity in the right lower lobe could reflect concurrent pneumonia or aspiration in the appropriate clinical situation , however , this has been present and stable since ___