Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral axillary metallic clips are noted . The patient has had prior mastectomy with reconstruction . Bilateral airspace opacities in the bilateral upper and left lower lobes are compatible with known multifocal pneumonia . There is no pneumothorax . The heart and mediastinum are magnified by the projection . A small left pleural effusion is slightly increased . There is no evidence of subdiaphragmatic free intraperitoneal air . Bones are unremarkable .
    OUTPUT:
    
No evidence of pneumoperitoneum . No significant interval change in multifocal pneumonia . Increased small left pleural effusion .