Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is top - normal to mildly enlarged . No large pleural effusion is seen . . Patchy right basilar opacity may relate to prominent vascular structures , but underlying infection or aspiration is not excluded . Anchor screws overlie the left humeral head which could . Inferiorly simple in relation area
    OUTPUT:
    
No pleural effusion or definite pulmonary edema . Patchy right basilar opacity may be due to prominent vascular structures but infection or aspiration not excluded .