Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Lung volumes are quite low . Increased pulmonary opacities could reflect crowding of bronchovascular STIR in the setting of low lung volumes . Difficult though to exclude a component of edema or pneumonia . No large effusion or pneumothorax is seen . The overall cardiomediastinal silhouette appears grossly unchanged . Bony structures are intact .
    OUTPUT:
    
Limited due to low lung volumes , difficult to exclude mild edema or pneumonia . Recommend repeat with more optimal inspiratory effort .