title: Focal thoracic uptake mimicking lung metastasis on 131I post-therapy whole-body scan in patients with thyroid carcinoma.
abstract: Whole-body 131I scan after total thyroidectomy is important in the evaluation of radioiodine avid metastatic foci in patients with differentiated thyroid carcinoma. False-positive uptakes are occasionally seen in the thoracic region which should be evaluated carefully and not mistaken as lung metastases. We report here 2 cases of abnormal focal thoracic uptake, 1 case of a pleuropericardial cyst and 1 case of focal bronchiectasis, that could potentially be confused with lung metastasis. Careful correlation with diagnostic CT and subsequent follow-up studies suggested that these were not metastatic lesions.
authors.affiliation: From the Division of Nuclear Medicine, Department of Radiology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY.
authors.forename: Changping
authors.initials: C
authors.lastname: Jia
authors.forename: Renee
authors.initials: R
authors.lastname: Moadel
authors.forename: Leonard M
authors.initials: LM
authors.lastname: Freeman
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001692:Biological Transport; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007457:Iodine Radioisotopes; D008175:Lung Neoplasms / Q000556:secondary*; D011877:Radionuclide Imaging; D013909:Thorax / Q000000981:diagnostic imaging / Q000378:metabolism*; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging* / Q000378:metabolism / Q000473:pathology / Q000601:surgery*; D013965:Thyroidectomy; D051598:Whole Body Imaging
chemical_list: D007457:Iodine Radioisotopes