Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Apparent interval enlargement of the heart may be due to differences in technique . Left lung base opacity is unchanged and consistent with a fat pad . No focal consolidation , pleural effusion , or pneumothorax . Wedging of a mid thoracic vertebral body and endplate sclerosis of upper thoracic vertebral bodies are unchanged .
    OUTPUT:
    
No acute cardiopulmonary process . Apparent increased size of the cardiac silhouette is likely due to differences in technique .