Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly is re- demonstrated . The mediastinal and hilar contours are unchanged . There is mild upper zone vascular redistribution without overt pulmonary edema , a finding which appears chronic . Patchy opacities in the lung bases also persist , and likely reflect chronic bronchiectasis with atelectasis although aspiration is not excluded . No pneumothorax is identified though assessment is slightly limited due to the patient 's neck and soft tissues of the chin projecting over these regions . No pleural effusion is identified . No acute osseous abnormality is detected .
    OUTPUT:
    
Chronic patchy bibasilar opacities , likely reflecting a combination of bronchiectasis and atelectasis , but aspiration is not completely excluded . Unchanged moderate cardiomegaly with persistent upper zone vascular redistribution suggestive of elevated pulmonary venous pressures .