title: Mediastinal uptake of I-131 in a hiatal hernia mimicking recurrence of papillary thyroid carcinoma.
abstract: I-131 is used to image patients diagnosed with papillary or follicular carcinoma of the thyroid after thyroidectomy to observe for metastatic disease or residual thyroid tissue. I-131 is excreted in gastric mucosa and is seen in the esophagus after the swallowing of saliva. The authors describe a patient in whom radiopharmaceutical activity in the mediastinum was subsequently shown to be due to a hiatal hernia.
authors.affiliation: Department of Radiology, Bowman Gray School of Medicine, Wake Forest University, Winston-Salem, NC 27157-1088.
authors.forename: L L
authors.initials: LL
authors.lastname: Willis
authors.forename: R J
authors.initials: RJ
authors.lastname: Cowan
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002291:Carcinoma, Papillary / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005189:False Positive Reactions; D005260:Female; D006551:Hernia, Hiatal / Q000000981:diagnostic imaging*; D006801:Humans; D007457:Iodine Radioisotopes; D008482:Mediastinum / Q000000981:diagnostic imaging; D009364:Neoplasm Recurrence, Local / Q000000981:diagnostic imaging*; D011877:Radionuclide Imaging; D013670:Sodium Pertechnetate Tc 99m; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging*; D013965:Thyroidectomy
chemical_list: D007457:Iodine Radioisotopes; D013670:Sodium Pertechnetate Tc 99m