Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patchy right base opacity is seen which could be due to infection , aspiration , or atelectasis . There is blunting of the posterior left costophrenic angle which may be due to pleural thickening , less likely trace pleural effusion . No pneumothorax is seen . The cardiac silhouette is top - normal to mildly enlarged . There is slight prominence of the main pulmonary artery which may be seen in the setting of pulmonary arterial hypertension . Slight prominence of the AP window may be due to prominent pulmonary artery however , underlying lymphadenopathy not excluded . No overt pulmonary edema .
    OUTPUT:
    
Right base opacity may be due to consolidation from infection or aspiration . Slight blunting of the posterior left costophrenic angle most likely due to pleural thickening rather than trace pleural effusion . Prominence of the main pulmonary arteries suggests component of pulmonary arterial hypertension . Slightly prominent AP window could be due to prominent pulmonary artery , however , underlying lymphadenopathy is not excluded . Consider follow - up nonurgent chest CT for further assessment .