Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is at the upper limits of normal size . The mediastinal and hilar contours appear unchanged . Hyperinflation is noted with persistent reticular opacities projecting over the left lower lung but markedly improved since the prior radiographs . Thin flowing anterior syndesmophytes are present throughout the thoracic spine . This appearance has an association with spondyloarthropathies .
    OUTPUT:
    
1 . Improving pneumonia . 2 . Thin spinal syndesmophytes suggesting the possibility of an inflammatory arthropathy such as could be seen with ankylosing spondylitis ; clinical correlation is suggested .