What does this PET scan of lungs indicate?
Patient: My husband s report from a pet scan said the lungs are moderately inflated there is vascular crowding in the left lower lobe and poster segment of the left upper lobe presumable related to the patients absent pericardium. What does all this mean ? Thank you Doctor: PET scan indicates metabolic activity  in the body.Areas which are infected or tumors are more metabolically active and are highlighted with PET Scan.The report you are indicating is  from a PET/CT scan.And what you are reporting does not have any obvious abnormailty.Did your husband have a previous surgery?