Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , causing crowding of bronchovascular structures . Heart size is top normal . No pleural effusions or pneumothorax . No definite focal consolidation identified . On the lateral view , density overlying the lower thoracic spine is thought to be bronchovascular structures .
    OUTPUT:
    
No acute cardiopulmonary process .