Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Opacity in left lung base most likely represent atelectasis . Otherwise , the lungs are clear without pulmonary edema , pleural effusion or pneumothorax . There are multiple calcified pleural plaques . The cardiac contours are normal . The aorta is calcified . Asymmetry of the breast tissues is stable since ___ . There is spinal hardware .
    OUTPUT:
    
No acute cardiopulmonary process .