Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small to moderate left pleural effusion with overlying atelectasis is re - demonstrated . The right lung is clear . No right pleural effusion is seen . There is no evidence of pneumothorax . Subcentimeter calcified nodular structure projecting over the left upper lung most likely presents a calcified granuloma . The cardiac and mediastinal silhouettes are stable and unremarkable .
    OUTPUT:
    
Persistent small to moderate left pleural effusion with overlying atelectasis . Recommend followup to resolution .