Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Postoperative changes thoracic spine fusion with instrumentation in place . Port - A - Cath with tip in the upper SVC . Pulmonary vascularity is now normal . Shallow inspiration accentuates heart size . There is a small right pleural effusion , new or more prominent since prior exam , with right basilar opacity , atelectasis versus infiltrate in the appropriate clinical setting . Left lung is clear . There is moderate gastric distention .
    OUTPUT:
    
Small right pleural effusion . Right basilar opacity , likely atelectasis , consider infection in the appropriate clinical setting . Moderate gastric distention