Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette and clear lungs which are hyperinflated , without focal consolidation . A 4 mm focal area of nodularity is seen in the left lung apex and may be inflammatory , although a parenchymal nodule can not be excluded . The bilateral hemidiaphragms are flattened . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . A 4 mm focal area of nodularity in the left lung apex may be inflammatory , although a parenchymal nodule can not be excluded . Comparison to prior studies would be helpful , but if not available , a CT chest or 3 month followup chest radiograph can be obtained .