Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest were provided . Lung volumes are low . The heart appears mildly enlarged . There is possible mild pulmonary edema accounting for the vague ground - glass opacities involving both lungs . Alternatively , this appearance could reflect underpenetrated technique . No large effusions are seen . The bony structures are intact .
    OUTPUT:
    
Limited study with possible mild edema and mild cardiomegaly .