Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Aorta is mildly tortuous . Pulmonary vascular congestion is present as well as a small to moderate right pleural effusion . , also evident on prior CT . With the exception of adjacent right basilar atelectasis , lungs are grossly clear .
    OUTPUT:
    
Tortuous thoracic aorta , without definitive signs of aortic dissection radiographically . CTA is the preferred imaging modality for evaluating for aortic dissection and would be recommended if there is clinical suspicion for this entity . Persistent right pleural effusion .