Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are obtained . Low lung volumes limit evaluation , as does the large body habitus . There is no overt pneumonia or CHF . Mild pulmonary vascular congestion , impossible to exclude . No large pleural effusion or pneumothorax . Heart size appears within normal limits . Subtle hyperdensity in the region of the mitral annulus may reflect mitral annular calcification . Bony structures are intact .
    OUTPUT:
    
Limited study with possible mild congestion and mitral annular calcification . Otherwise , unremarkable .