Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were obtained . A hazy left basilar opacity blurs the left heart border on the frontal projection . There is no clear correlate on the lateral view , but potentially in the retrocardiac clear space . Tiny the left costophrenic angle is blunted by a small pleural effusion . Heart size is normal . Aortic arch calcifications and tortuosity are mild . There is no pneumothorax or displaced rib fracture .
    OUTPUT:
    
Left basilar opacity can not be completely attributed to soft tissue attenuation and could represent aspiration or early pneumonia in the correct clinical context . Repeat after treatment suggested to document resolution .