Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the prior film , no obvious change is detected involving the right lung . Again seen is a right chest tube , with some stable blunting of the right costophrenic angle and overall decreased size of the right chest , with multiple rib fractures again noted . No obvious pneumothorax is identified . Markings in the right chest are similar to the prior film , without frank , focal consolidation . There is a small left effusion , which is slight increased compared with the prior film , and minimal atelectasis at the left lung base , similar to the prior film . The cardiomediastinal silhouette is slightly enlarged , but appears slightly decreased in size compared to the prior film . It remains midline . Tortuous aorta is unchanged . Azygos vein is probably decreased in size . Apparent interval removal of an epidural catheter . The current film includes the AC joint , which is clearly separated , with elevation of the distal clavicle with respect to the acromion and associated widening of the AC joint and coracoclavicular interval .
    OUTPUT:
    
1 . Right chest , including minimal blunting of the right costophrenic angle , essentially unchanged . No pneumothorax detected . 2 . Multiple right - sided rib fracture again noted . AC joint separation again noted ( previously seen on right shoulder radiographs from ___ ) . 3 . Small left pleural effusion slightly increased . Continued minimal atelectasis of left base . 4 . Apparent slight improvement in cardiomegaly and interval normalization of previously distended right azygos vein .