Inconsistent findings between PET-CT and enhanced CT need to be combined with the specific site to clarify the disease through further examination. Enhanced CT, i.e., when doing CT scanning, requires injection of contrast agent, which is commonly used clinically as non-ionic iodine preparation; while PET-CT also requires injection of drugs, which is commonly used clinically as positronic nuclide-labeled deoxyglucose. 1. PET-CT is the most accurate of all examination equipment, and can theoretically detect tumors with a diameter of about 0.2cm; while enhanced CT is slightly less accurate, and can theoretically detect tumors with a diameter of only about 0.5cm. 2. PET-CT can directly examine the whole body and local area, which can avoid missing the metastatic foci of the tumor; whereas enhanced CT can only examine the local area, and there may be cases of missing metastatic foci. Therefore, there are still differences between the two examinations. In case of inconsistent results, it is recommended to improve the examination under the guidance of specialized doctors, such as biopsy, to further confirm the diagnosis of the disease.