title: 131I abnormal uptake by the thyroid bed from Zuckerkandl tubercle diagnosis by 131I SPECT/CT.
abstract: After thyroid remnant ablation following total thyroidectomy for thyroid cancer, 131I SPECT/CT revealed 131I uptake, regarded as thyroid bed uptake on planar images, in the anterior cervical region. On SPECT/CT, the 131I uptake focus appeared at the esophagus, suggesting esophageal invasion. No esophageal invasion had been recognized intraoperatively, and no residual uptake was detected by 131I scintigraphy evaluating therapeutic effects 3 months after ablation. Preoperative CT revealed a retrotracheal space portion extending from the normal thyroid with the same density, suggesting Zuckerkandl tubercle. Abnormal uptake on SPECT/CT was deemed Zuckerkandl tubercle-derived thyroid bed uptake.
authors.affiliation: From the Departments of *Nuclear Medicine and †Surgical Oncology, Graduate School of Medicine, Osaka City University, Osaka, Japan.
authors.forename: Joji
authors.initials: J
authors.lastname: Kawabe
authors.forename: Shigeaki
authors.initials: S
authors.lastname: Higashiyama
authors.forename: Kohei
authors.initials: K
authors.lastname: Kotani
authors.forename: Naoyoshi
authors.initials: N
authors.lastname: Onoda
authors.forename: Susumu
authors.initials: S
authors.lastname: Shiomi
mesh_terms: D000293:Adolescent; D005260:Female; D006801:Humans; D007457:Iodine Radioisotopes; D019275:Radiopharmaceuticals; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery; D013965:Thyroidectomy; D015899:Tomography, Emission-Computed, Single-Photon
chemical_list: D007457:Iodine Radioisotopes; D019275:Radiopharmaceuticals