Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Exam is limited secondary to overlying trauma board . A right apical opacity is seen compatible with known contusions seen on subsequent CT . Trace right pneumothorax is not identified . There are multiple right - sided rib fractures also better characterized on CT scan . Left - sided rib fractures are better seen as subacute on CT scan . The cardiomediastinal silhouette is within normal limits for technique .
    OUTPUT:
    
Known right - sided pulmonary contusion , trace right pneumothorax and right rib fractures as seen on CT scan .