Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a severe rotoscoliosis convex right the heart is upper limits normal in size . There is mild pulmonary vascular redistribution . There are diffuse increase in lung markings but There is no focal infiltrate .
    OUTPUT:
    
The etiology of the diffuse increased lung markings is is unclear . This could be an atypical presentation of fluid overload , chronic lung disease , or an atypical presentation of an infectious process . Comparison with old films and clinical correlation would be helpful