Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is a subtle patchy opacity projecting over the right upper lobe , difficult to discern whether it may have been subtly present on the prior study , concerning for focus of infection . Recommend followup to resolution to exclude underlying lesion . The remainder of the lungs is clear . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable . A single - lead left - sided AICD is again seen , unchanged in position .
    OUTPUT:
    
Subtle patchy right upper lobe opacity raises concern for focus of infection . Recommend followup to resolution to exclude an underlying lesion .