Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs . Punctate nodular density in the left mid lung does not have the radiographic appearance of a metastasis and probably is a vessel . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
No radiographic evidence of intrathoracic metastasis .