Objective To assess the diagnostic value of 131I-WBI,CT and chest X-ray for patients with differentiated thyroid cancer(DTC)after removing the lung metastases. Methods A retrospective study was done in 49 DTC patients with pulmonary metastases after resection of the metastatic lesions.The imaging characteristics of 131I-WBI,chest CT and chest X-ray were observed,and the sensitivity between the three methods in the diagnosis of DTC with lung metastases was compared. Results The sensitivity of 131I-WBI,CT and...