[Diagnosis of metastasis of malignant melanoma in the thyroid gland with f18-FDG PET scan].
Metastases in the thyroid gland are very rare. When they occur, long-term survival is dismal; thus an early diagnosis is critical. Malignant melanoma is one of the tumors which may metastasize to the thyroid gland. Therefore we wanted to demonstrate F18-Fluorodeoxyglucose-Positron emission tomography (F18-FDG-PET) is a sensitive and reliable method to identify such metastases. We report about a 51-year-old man, who had an inguinal lymph node metastasis of a malignant melanoma with unknown primary tumor site. He came to us for an a follow-up F18-FDG-PET investigation. In the PET there was a pathologic FDG-uptake in the left lobe of the thyroid gland. The nodule was removed and showed a malignant melanoma metastasis. This unusual scenario underscores the value of the PET in the oncologic follow-up of patients with malignant melanoma.
Wolf
G
G
Universitäts-Klinik für Radiologie, Klinische Abteilung für Nuklearmedizin, Auenbruggerplatz 9, 8036 Graz, Osterreich. ge.wolf@kfunigraz.ac.at
Aigner
R M
RM
Schwarz
T
T
Nicoletti
R
R
D003937:Diagnosis, Differential; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008297:Male; D008545:Melanoma / Q000000981:diagnostic imaging / Q000556:secondary*; D008875:Middle Aged; D012878:Skin Neoplasms / Q000000981:diagnostic imaging*; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D014055:Tomography, Emission-Computed
D019788:Fluorodeoxyglucose F18
Diagnostik einer Metastase eines malignen Melanoms in der Schilddrüse mittels F18-FDG-PET.