Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single EKG lead overlies each hemi thorax . The heart is not enlarged . Within the limits of plain film radiography , no hilar or mediastinal lymphadenopathy or pulmonary nodules is detected . No CHF , focal infiltrate or effusion is identified . Mild left convex curvature of the lower thoracic spine is noted . There is mild right - greater - than - left AC joint degenerative narrowing . Visualized bones are otherwise grossly unremarkable .
    OUTPUT:
    
Within normal limits , except for left convex curvature of the lower thoracic spine and mild AC joint degenerative change . No acute pulmonary process identified .