Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small foci of linear scarring are seen in the right middle and left lower lobes . There is no focal consolidation , pleural effusion , pneumothorax , or pulmonary edema identified . A stable , mild area of indentation is seen along the right lateral aspect of the trachea , likely secondary to the patient 's known enlarged thyroid . The heart size is normal . Mediastinal and hilar contours are normal . Redemonstrated are several thoracic vertebroplasties , unchanged and appearance from the prior examination .
    OUTPUT:
    
No radiographic evidence for acute pulmonary process .