Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are compared to previous exam from ___ . The patient is somewhat slanted towards the left . Left basilar opacity likely due to atelectasis . The lungs are clear of definite consolidation or effusion . The cardiomediastinal silhouette is again notable for mild cardiomegaly . Two linear mettalic densities now project over the lower neck , potentially external in nature . Surgical clips in the right upper quadrant suggests prior cholecystectomy . No free air identified below the diaphragm .
    OUTPUT:
    
No definite acute cardiopulmonary process .