Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is subtle patchy opacity projecting over the spine on the lateral view , likely localizing to the left based on the frontal view . The lungs are otherwise clear and there is no effusion . Cardiomediastinal silhouette is within normal limits . Deformity of the posterior left and probable right ribs is seen compatible with prior healed fractures . Compression deformities also seen in the upper to mid thoracic spine with associated kyphosis .
    OUTPUT:
    
Subtle left basilar opacity which may represent pneumonia . Bilateral posterior rib deformities which appear old and wedge deformities of the mid thoracic spine , of uncertain age and clinical correlation is suggested .