Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Supine portable AP chest radiograph is obtained . Underlying trauma board limits evaluation . The lateral most aspect of the right CP angle is excluded . There is streaky opacity in the right upper lung which could represent a small amount of aspiration or atelectasis . The lungs appear otherwise clear , though lung volumes are low . No large consolidation is seen . No supine evidence of pneumothorax or effusion . Cardiomediastinal silhouette appears grossly unremarkable . Bony structures appear intact .
    OUTPUT:
    
Right upper lung streaky opacity , likely atelectasis or aspiration . Otherwise , no acute findings .