Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Overlying ekg leads are present . Minimal platelike left basal atelectasis is noted . Otherwise lungs are clear without focal consolidation , effusion or pneumothorax . No signs of congestion or edema . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact .
    OUTPUT:
    
No acute intrathoracic process