Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP view of the chest . There are low lung volumes . Calcified nodules in the right lung base are unchanged from prior , likely sequelae of prior healed infection . There is bibasilar atelectasis . No focal consolidation , pleural effusion or pneumothorax . The cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Stable calcified nodules in the right lung base , likely sequela of prior healed infection .