Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are mildly low lung volumes . Allowing for changes due to this , the cardiomediastinal silhouettes are within normal limits . The bilateral hila are unremarkable . An azygos fissure is noted . The lungs are clear without focal consolidation . There is no evidence of pulmonary vascular congestion . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
No acute cardiopulmonary process . No evidence of pneumonia or sequelae of aspiration .