title: A novel case of false-positive I-131 whole-body scan in thyroid carcinoma caused by subdural hematoma.
abstract: Iodine-131 whole-body scintigraphy has been used extensively to detect thyroid remnants as well as metastatic disease in thyroid carcinoma postthyroidectomy. Over the years, numerous causes of false-positive scans have been reported. The authors report a novel case of a false-positive result resulting from a subdural hematoma mimicking a skull or cerebral metastasis.
authors.affiliation: Department of Nuclear Medicine and PET, Singapore General Hospital, Singapore 169608. ongsengchuan@hotmail.com
authors.forename: Seng Chuan
authors.initials: SC
authors.lastname: Ong
authors.forename: David Ng Chee
authors.initials: DN
authors.lastname: Eng
authors.forename: Felix X
authors.initials: FX
authors.lastname: Sundram
authors.forename: Ling Ling
authors.initials: LL
authors.lastname: Chan
mesh_terms: D000368:Aged; D001932:Brain Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000556:secondary; D003937:Diagnosis, Differential; D005189:False Positive Reactions; D006408:Hematoma, Subdural / Q000175:diagnosis / Q000000981:diagnostic imaging*; D006801:Humans; D007457:Iodine Radioisotopes; D008297:Male; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis / Q000000981:diagnostic imaging*; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D012888:Skull Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000556:secondary; D013964:Thyroid Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000601:surgery*; D013965:Thyroidectomy; D014915:Whole-Body Counting
chemical_list: D007457:Iodine Radioisotopes; D019275:Radiopharmaceuticals