Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate well expanded clear lungs . An area of relative ___ seen in the frontal view in the left midlung may represent asymmetric soft tissue , or soft tissue mass . The cardiomediastinal and hilar contours are unremarkable . There is no pneumothorax , pleural effusion , or consolidation .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . An area of relative ___ seen in the frontal view in the left midlung may represent asymmetric soft tissue , or soft tissue mass . Recommend correlation with physical examination of the anterior and posterior left hemi thorax .