Division of Nuclear Medicine, Department of Radiology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Clin Nucl Med. 2013 Sep;38(9):730-4. doi: 10.1097/RLU.0b013e318286bbfa.
(131)I whole-body scan is performed during treatment and follow-up after radioiodine treatment to detect functioning thyroid remnant and metastatic lesions in differentiated thyroid carcinoma (DTC). False-positive scans are rare, but may cause a potential pitfall by misleading to unnecessary radiation exposure from inappropriate radioiodine treatment. We report a case of papillary thyroid cancer patient with false-positive (131)I scan in the lung due to pulmonary bronchiolitis. Clinical correlation and imaging characteristics obtained from additional SPECT/CT images are very helpful to indicate this lesion as a benign condition.
（131）全身扫描在分化型甲状腺癌（DTC）的放射性碘治疗及随访期间进行，以检测功能残留甲状腺和转移病灶。假阳性扫描很少见，但可能会因误导不必要的放射性碘治疗而导致潜在的陷阱。我们报告了一例因细支气管炎导致肺内假阳性（131）I 扫描的甲状腺乳头状癌患者。通过额外的 SPECT/CT 图像获得的临床相关性和影像学特征有助于提示该病变为良性病变。
