Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Cardiomediastinal silhouette and hilar contours are unremarkable . There is a moderate to large right - sided pleural effusion with superior fissural and subpleural component which could suggest loculation with associated right base consolidation . The left lung is essentially clear . There is no pneumothorax .
    OUTPUT:
    
Moderate to large right - sided pleural effusion with possible partial loculation with adjacent right base consolidation which could be compressive atelectasis however this may represent infection given the correct clinical circumstance .