Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette has remained stable since prior examinations . The pulmonary vasculature is slightly more indistinct than on prior examination . Since the prior examination , there has been development of a moderate right - sided pleural effusion . Small fissure of fluid is also noted . There is no definite consolidation . Median sternotomy wires are intact and well aligned . There is evidence of prior CABG .
    OUTPUT:
    
Interval development of right pleural effusion and indistinctness of the pulmonary vasculature .