Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . No displaced rib fracture is identified . Partially imaged area of sclerosis in the proximal left humerus may represent bone infarct or possibly enchondroma .
    OUTPUT:
    
No acute cardiopulmonary process . No displaced rib fracture identified . If concern is high for rib fracture , dedicated rib series or CT is more sensitive . Area of sclerosis involving the left proximal humerus is not well assessed . Correlate with history of malignancy . Findings may represent bone infarct , metastatic focus not excluded . Suggest dedicated imaging of the left humerus if not already evaluated .