Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were obtained . Again seen is a triple - lead left - sided AICD , unchanged in position . Moderate cardiomegaly is stable accounting for differences in technique . Mediastinal contour is unchanged . The lungs are symmetrically expanded and clear without consolidation , pleural effusion , or pneumothorax .
    OUTPUT:
    
No acute intrathoracic abnormality .