Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Lungs are clear . There is no focal consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact . Metallic densities project over the right upper arm which may represent structures external to the patient . Please correlate clinically .
    OUTPUT:
    
No acute intrathoracic process . Radiodense objects along the periphery of the film , likely external / artifact though clinical correlation advised .