Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are somewhat low , however , no focal opacity to suggest pneumonia is seen . No pleural effusion , pulmonary edema or pneumothorax is present . A stent in the region of the left brachiocephalic vein is unchanged . Surgical chain suture is noted in the right lower lobe . A calcification seen projecting over the cardiac silhouette to the left of the aorta is not clearly localized on this single frontal radiograph , however , was not present on the examination of ___ . The heart size is normal .
    OUTPUT:
    
1 . No evidence of acute cardiopulmonary process . 2 . Rounded calcification projecting over the cardiac silhouette not well localized on this single frontal radiograph . This could represent a calcified granuloma , however , was not present on the examination of ___ . PA and lateral radiographs may be performed for further evaluation and localization .