Widespread metastases from sarcomatoid renal cell carcinoma detected by (18)F-FDG positron emission tomography/computed tomography.
We present a case of sarcomatoid renal cell carcinoma (RCC). Although preoperative computed tomography (CT) scans demonstrated small lung and pleural nodules and mediastinal lymphadenopathy, these findings were not conclusive for metastases. Whole-body fluorine-18 fluorodeoxyglucose positron emission tomography and CT (FDG-PET/CT) performed 15 days after right nephrectomy showed intense FDG uptake in the aforementioned lesions (lung and pleural nodules, mediastinal lymph nodes). Unexpectedly, focal increased FDG uptake was found in the right infraspinatus muscle. FDG-PET/CT was considered useful for evaluating distant metastases and thus portending the aggressive nature of sarcomatoid RCC.
Hyodo
Tomoko
T
Department of Diagnostic and Therapeutic Radiology, Ehime University, Shitsukawa, Toon, 791-0295, Japan.
Sugawara
Yoshifumi
Y
Tsuda
Takaharu
T
Yanagihara
Yutaka
Y
Aoki
Katsunori
K
Tanji
Nozomu
N
Hirata
Masaaki
M
Murakami
Masateru
M
Miyagawa
Masao
M
Yokoyama
Masayoshi
M
Mochizuki
Teruhito
T
D002292:Carcinoma, Renal Cell / Q000473:pathology* / Q000628:therapy; D018450:Disease Progression; D019788:Fluorodeoxyglucose F18; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis / Q000000981:diagnostic imaging* / Q000628:therapy; D019275:Radiopharmaceuticals; D014055:Tomography, Emission-Computed; D014057:Tomography, X-Ray Computed; D051598:Whole Body Imaging
D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18