A rare presentation of metastatic renal clear cell carcinoma to the tongue seen on FDG PET.
Renal clear cell carcinoma has a great metastatic potential, with possibly uncommon secondary lesions, notably in the head and neck region. The role of F-18 fluorodeoxyglucose positron emission tomography (F-18 FDG PET) in the staging or follow-up of urological malignancies is still not clearly defined. We report a case of metastatic renal cell carcinoma involving the tongue and a cervical lymph node, 3 years after initial nephrectomy. The use of combined positron emission tomography/computed tomography scan showed increased F-18 FDG activity in these 2 lesions that were then diagnosed and treated by surgery. Although the diagnostic performance of F-18 FDG PET is limited in the detection of primary disease, this imaging modality can be a very useful tool in the follow-up of renal clear cell carcinoma.
Basely
Mathieu
M
Department of nuclear medicine, Hôpital d'instruction des armées (HIA) Sainte-Anne, Toulon, France. matbasely@hotmail.com
Bonnel
Samantha
S
Maszelin
Philippe
P
Verdalle
Pierre
P
Bussy
Emmanuel
E
de Jaureguiberry
Jean-Pierre
JP
D002292:Carcinoma, Renal Cell / Q000000981:diagnostic imaging* / Q000473:pathology*; D005260:Female; D019788:Fluorodeoxyglucose F18; D005500:Follow-Up Studies; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D008875:Middle Aged; D049268:Positron-Emission Tomography; D014062:Tongue Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary*
D019788:Fluorodeoxyglucose F18