Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is top normal with a left ventricular predominance . The aorta remains diffusely calcified and tortuous . The pulmonary vascularity is not engorged . There is minimal streaky opacity within the lung bases , likely reflecting atelectasis . No focal consolidation or pleural effusion is present . No definite pneumothorax is seen . No displaced rib fractures are noted . Extensive degenerative changes of both glenohumeral joints are present . There appears to be retained barium within colonic diverticula in the left upper quadrant of the abdomen . Multiple left - sided rib fractures are noted and were present when compared to the prior CT abdomen from ___ , but no acute fractures are present .
    OUTPUT:
    
No acute intrathoracic traumatic injury definitively noted . If there is continued clinical concern for acute rib fracture , consider a dedicated rib series . Mild bibasilar atelectasis .