Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a mild dextrocurvature of the thoracic spine , new since comparison study , which may be positional in nature . Lung volumes are normal . There is no acute consolidation , pleural effusion , pneumothorax . Cardiomediastinal silhouette is normal . Anterior dislocation of the left humeral head is noted .
    OUTPUT:
    
1 . Clear lungs . 2 . Anterior dislocation of the left humeral head .