Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: On the frontal view , the cardiomediastinal silhouette is similar to the prior study . The heart is not enlarged . The aorta is calcified and unfolded . Mild prominence of the right hilum , with a tapered appearance , raises the question of pulmonary hypertension , unchanged . Of note , on the lateral view , the AP diameter of the descending aorta appears larger than on the prior study , measuring approximately 4 .0 cm on today 's exam versus 3 .6 cm on the ___ exam , at the level of the mid thoracic spine . No CHF , focal infiltrate , or effusion is identified . No pneumothorax is detected . A vague patchy density measuring ___ .0 mm is seen in the right upper chest laterally , overlying the inferior right third rib , not visualized on the prior exam . Again seen is eventration of the right hemidiaphragm . Multiple surgical clips noted in the region of the GE junction and midline upper abdomen . By report , the patient is status post prior Billroth surgery .
    OUTPUT:
    
1 ) No acute pulmonary process identified . In particular , no focal infiltrate suggestive of pneumonia . 2 ) Apparent increase in AP diameter of the descending aorta . While it is possible that this appearance could be artifactual due to differences in degree of magnification for the patient rotation , it can not be readily dismissed in this way on these images given the relative diameter compared to the size of the vertebral bodies . Is there clinical evidence concerning for thoracic dissection ? 3 ) 14 mm patchy opacity in the right mid zone laterally , new compared with the prior study . This appearance is more suggestive of a pleural plaque or an artifact due to overlying structures , than a focal infiltrate .