Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no focal consolidation , pleural effusion , pulmonary edema , or pneumothorax . The cardiomediastinal silhouette , including mild cardiomegaly , is stable . A dual - chamber left pectoral pacemaker and its leads project in unchanged location . Diaphragmatic eventration is similar to prior studies . The previously seen obscuration of the left hemidiaphragm has resolved . A stable retrocardiac opacity corresponds to a moderate hiatal hernia seen on chest CT from ___ .
    OUTPUT:
    
No acute cardiopulmonary process . Interval resolution of left base diaphragmatic obscuration .