Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP chest radiograph demonstrates hyperexpanded lungs and apical pleuroparenchymal scarring . There is left basilar atelectasis . The cardiomediastinal silhouette is normal . There is no pleural effusion or pneumothorax . Medullary densities in the left humerus likely represent an enchondroma .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Probable left humeral enchondroma . Dedicated radiographs of the left humerus are recommended when clinically appropriate . The findings and recommendations were discussed with Dr . ___ by telephone at 5 : 22 pm by telephone on ___ .