Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are compared to prior chest x-ray from ___ and CT chest from ___ . The lungs remain clear . There is no focal consolidation , effusion , or evidence of pulmonary vascular congestion . Cardiac silhouette is stable . Atherosclerotic calcifications noted at the arch . Again noted is a left fat - containing Bochdalek hernia , confirmed by chest CT . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .