Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . The lungs are clear of focal consolidation . Well - circumscribed left lower lung nodule is grossly unchanged . Cardiomediastinal silhouette is unchanged . No acute osseous abnormality is identified .
    OUTPUT:
    
Unchanged left lower lung nodule as previously described on PET - CT from ___ . No acute cardiopulmonary process .