Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are compared to multiple previous exams dating back to ___ . Compared to most recent exam , there has been interval enlargement of the left - sided pleural effusion which is moderate . It may be partially loculated laterally . The appearance of the right basilar consolidation has progressed as well . Cardiomediastinal silhouette is unchanged as are the osseous and soft tissue structures .
    OUTPUT:
    
Interval enlargement of left - sided pleural effusion which may be partially loculated laterally . Underlying left base atelelectasis , infection also possible . Slight progression of right basilar parenchymal opacity is compatible with pneumonia in the proper clinical setting .