title: Benign cervical thymoma masquerading as a malignant thyroid nodule.
abstract: A thymoma in the neck region is a rare diagnosis involving a solitary neck nodule that moves with deglutition and is contiguous with the thyroid gland. The authors report an unusual case of a thymoma that accumulated both Tc-99m pertechnetate and Tc-99m MIBI. This is probably the first reported case of a benign neck thymoma concentrating these two radiopharmaceuticals. Thymoma should be added to the gamut of false-positive findings in the neck for thyroidal (with Tc-99m pertechnetate) and malignant (with Tc-99m MIBI) tissue.
authors.affiliation: Institute of Nuclear Medicine and Allied Sciences, Brig. SK Mazumdar Marg, Delhi, India.
authors.forename: Kashyap P
authors.initials: KP
authors.lastname: Lanka
authors.forename: Badal
authors.initials: B
authors.lastname: Sarin
authors.forename: Vikas
authors.initials: V
authors.lastname: Prasad
authors.forename: Saurav
authors.initials: S
authors.lastname: Sen
authors.forename: Anurag
authors.initials: A
authors.lastname: Mehta
authors.forename: H S
authors.initials: HS
authors.lastname: Rawat
authors.forename: Anupam
authors.initials: A
authors.lastname: Mondal
authors.forename: Rajnish
authors.initials: R
authors.lastname: Sharma
mesh_terms: D000328:Adult; D001707:Biopsy, Needle; D003937:Diagnosis, Differential; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D013670:Sodium Pertechnetate Tc 99m; D017256:Technetium Tc 99m Sestamibi; D013945:Thymoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D013953:Thymus Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D016606:Thyroid Nodule / Q000000981:diagnostic imaging* / Q000473:pathology
chemical_list: D019275:Radiopharmaceuticals; D017256:Technetium Tc 99m Sestamibi; D013670:Sodium Pertechnetate Tc 99m