Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Within the right cardiophrenic angle , a 6 .3 cm x 6 .7 cm diameter , well defined opacity is identified , and appears relatively lucent , suggesting possible fat content . Mediastinal contours are otherwise unremarkable . Lungs are hyperexpanded with attenuation of pulmonary vessels in the upper and mid lung regions suggestive of emphysema . Minimal linear opacities in the right mid and both lower lung regions are present , but there are no focal areas of consolidation or pleural effusion . Degenerative changes are present within the spine , and note is made of multiple healed left - sided rib fractures as well as degeenrative changes at the left shoulder . Additionally , a fracture of the third lateral left rib is of indeterminate age . There is no visible pneumothorax .
    OUTPUT:
    
1 . In addition to multiple healed rib fractures throughout the left hemithorax , there is a fracture of the left third lateral rib , which is of indeterminate age . Correlation with site of trauma and symptoms may be helpful in this regard . If warranted clinically , a dedicated rib series could be obtained with metallic marker at the site of symptoms . 2 . 6 .6 cm diameter , well defined right cardiophrenic angle mass is most likely a benign process such as a pericardial cyst , enlarged pericardial fat pad , or herniated fat from a Morgagni hernia . However , in the absence of older chest radiographs for comparison , CT is suggested for more complete characterization of this finding . 3 . Emphysema . Findings entered into radiology communications dashboard on the date of the study .