Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Lungs are clear . There is no evidence of pneumothorax . No pleural effusions are identified . There is a chronic appearing deformity of the right lateral seventh rib , likely related to prior trauma . There is mild elevation of the left hemidiaphragm , which is new from the prior examination .
    OUTPUT:
    
No focal consolidation . No evidence of acute rib fractures . Of note , this study is not particularly sensitive for the detection of rib fractures . Consider marking focal findings and obtaining dedicated rib radiographs if clinically indicated .