Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are compared to previous exam from ___ . There are increased interstitial markings on the frontal view which may be due to relatively lower lung volumes compared to prior as the lateral exam demonstrates grossly clear lungs . There is no pleural effusion . Cardiac silhouette is slightly enlarged but stable . Atherosclerotic calcifications again noted at the aortic arch . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Cardiomegaly without definite acute cardiopulmonary process .