Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest , PA and lateral radiographs demonstrate unremarkable mediastinal , hilar , and cardiac contours . Faint pulmonary nodules identified in the right lung apex , unchanged compared to ___ , with adjacent bi-apical thickening likely represents fibrosis and scarring . Otherwise , lungs are clear . No pleural effusion or pneumothorax evident . Newly evident compression wedge fractures identified in the mid thoracic spine are of unclear chronicity .
    OUTPUT:
    
No acute intrathoracic process . Wedge deformities of the mid thoracic spine are new since ___ , but of unclear chronicity .