Accidental discovery of lung metastases from differentiated thyroid cancer by 99mTc sodium pertechnetate scan in a patient with secondary hyperparathyroidism.
We present a 75-year-old-man affected by chronic renal failure in whom metastases from differentiated thyroid cancer (DTC) were incidentally discovered at TcO4 neck-thorax scan in the setting of a diagnosis of secondary hyperparathyroidism. Ten years before, he had undergone near-total thyroidectomy for a multinodular goiter. Result of the pathological examination was negative for DTC. At our observation, serum thyroglobulin was high in the absence of Tg-Ab, consistent with metastatic disease. Neck ultrasonographynography was negative. The patient underwent I therapy (3700 MBq) after stimulation with recombinant human thyroid-stimulating hormone. Postdose whole-body scan confirmed the metastases already demonstrated by TcO4.
Department of Radiological Sciences, Nuclear Medicine Unit, University of Messina, Messina, Italy. acampenni@unime.it
Alfredo
A
Campennì
Rosaria M
RM
Ruggeri
Domenico
D
Santoro
Mariapaola
M
Cucinotta
Stefania
S
Conti
Alessandro
A
Sindoni
Guido
G
Bellinghieri
Sergio
S
Baldari
D000368:Aged; D002454:Cell Differentiation; D006801:Humans; D006962:Hyperparathyroidism, Secondary / Q000150:complications*; D033162:Incidental Findings; D008175:Lung Neoplasms / Q000150:complications / Q000000981:diagnostic imaging* / Q000556:secondary*; D008297:Male; D011877:Radionuclide Imaging; D013670:Sodium Pertechnetate Tc 99m; D013964:Thyroid Neoplasms / Q000473:pathology*
D013670:Sodium Pertechnetate Tc 99m