Key result
Whole body combined PET/CT scanning in a 74-year-old woman with rectal carcinoma revealed diffuse intense FDG uptake in an inferior vena cava tumor thrombus.
Case Report (n=1)
PET/CT imaging can identify tumor thrombus in the inferior vena cava due to increased FDG uptake by malignant cells.
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PET/CT may identify IVC tumor thrombus in rectal carcinoma; hypothesis-generating and requires prospective validation.
A 74-year-old woman with a history of rectal carcinoma underwent whole body combined positron emission tomography/computed tomography (PET/CT) scanning for staging. Diffuse intense FDG uptake was seen in the distended infrarenal inferior vena cava (IVC) extending to the bilateral common iliac and left external as well as internal iliac veins. Heterogeneous hyperdense material was seen on the corresponding CT scan, suggesting tumor thrombus. Tumor thrombus shows increased FDG uptake resulting from the increased glycolytic rate in malignant cells.
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Gupta et al. (2005) conducted a case report in Rectal carcinoma with tumor thrombus in inferior vena cava (n=1). PET/CT scanning was evaluated on FDG uptake in tumor thrombus. Whole body combined PET/CT scanning in a 74-year-old woman with rectal carcinoma revealed diffuse intense FDG uptake in an inferior vena cava tumor thrombus.
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