Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Atherosclerotic calcifications are noted at the aortic knob . Mediastinal and hilar contours are unremarkable . Ill - defined focal opacities are seen within the right upper lobe , right lung base , and periphery of the left mid lung field . Minimal blunting of the left costophrenic angle posteriorly suggests a trace pleural effusion . No pneumothorax or pulmonary vascular congestion is present . There are degenerative changes within the imaged thoracolumbar spine .
    OUTPUT:
    
1 . Bilateral multifocal airspace opacities , potentially multifocal pneumonia , however given the patient 's history of pancreatic mass , metastases are also within the differential diagnosis . Comparison with prior radiographs or further assessment with contrast - enhanced chest CT is recommended . 2 . Small left pleural effusion .