Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are scattered patchy opacities that are better demonstrated on the concurrent chest CTA . No pleural effusions or pneumothorax . Cardiomediastinal silhouette is within normal limits . A 11 mm sclerotic focus in the left humeral neck is unchanged since at least ___ .
    OUTPUT:
    
1 . Patchy parenchymal opacities better demonstrated on the concurrent chest CTA . No pleural effusion or pneumothorax . 2 . 11 mm left humeral neck sclerotic focus is unchanged since at least ___ . This most likely represents a bone island . However , if there is any clinical concern for sclerotic metastases , comparison to earlier studies would be helpful , when made available .