Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Pneumoperitoneum is noted , likely related to patient 's recent intra-abdominal surgery . Within the lungs , there is right lower lobe linear atelectasis . No focal consolidation , pleural effusion , pneumothorax , or pleural effusion is identified . The heart size is normal . Mediastinal and hilar contours are normal .
    OUTPUT:
    
1 . No radiographic evidence for acute cardiopulmonary process . 2 . Pneumoperitoneum , likely secondary to patient 's recent laparotomy .