Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with ___ at ___ : 47 , there is opacity along the right chest wall , slightly increased . On today 's exam , there is equivocal irregularity involving at least 1 rib along the lower right chest , as well as a defect in the posterior sixth rib that likely relates to the recent surgery . Otherwise , I doubt significant interval change . Again seen is the NG type tube extending along the right mediastinum . Additional linear density likely reflects an epidural catheter . A right - sided chest tube is also present , unchanged . There is mild vascular plethora without frank CHF . Patchy opacity at the left base medially is again noted , possibly slightly increased . Patchy opacity at the right base is similar to the prior film . No gross effusion . No pneumothorax detected .
    OUTPUT:
    
1 . NG tube extending along right mediastinum in this the patient with a history of esophageal surgery . Tip poorly visualized , but probably lies at the level of the right cardiophrenic angle . 2 . Mild vascular plethora , without frank CHF . 3 . Patchy bibasilar opacities , possibly slightly increased on the left side , but without significant change on the right . 4 . Opacity along the right chest wall slightly increased , question pleural fluid and / or thickening . Possible irregularity of a lower right chest wall rib raising the question of a nondisplaced rib fracture . Does the the patient have focal tenderness in this location ? This is in addition to the postsurgical defect of the right sixth rib posteriorly .