Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a new small left pleural effusion . A new left basilar retrocardiac airspace opacity may be due to infection or aspiration . Mild cardiomegaly despite the projection is unchanged . There is no pneumothorax . Stable prominent paratracheal soft tissues are likely due to an enlarged thyroid gland .
    OUTPUT:
    
New small left pleural effusion . New left lower lobe airspace opacity may be due to atelectasis or infection . Stable mild cardiomegaly . Stable thyromegaly .