Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Examination is limited by body habitus . Heart size is mildly enlarged . Mediastinal silhouette and hilar contours are unremarkable . Diffuse increased opacity of the lung fields may represent some component of edema , although this is difficult to evaluate given body habitus . Lungs are otherwise grossly clear . No large effusion or pneumothorax .
    OUTPUT:
    
Possible component of fluid overload which is difficult to assess given large body habitus .