Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased density in the mid lung zones bilaterally is likely due to soft tissue attenuation . The lungs are clear without focal consolidation , pleural effusion or pneumothorax . The pulmonary vasculature is not engorged . The cardiomediastinal and hilar contours are within normal limits . No acute osseous abnormality is detected . There is pectus excavatum deformity .
    OUTPUT:
    
No acute cardiopulmonary process .