Key result
18F-FDG PET/CT scanning detected unusual metastatic sites in two post-radical nephrectomy renal cell carcinoma patients, including venous migration to the right atrium and extensive skeletal muscle deposits.
Case Report (n=2)
18F-FDG PET/CT is useful for detecting unusual metastatic pathways in renal cell carcinoma, such as venous migration to the right atrium and extensive skeletal muscle deposits.
Here we describe 2 cases of renal cell carcinoma where we found the unusual metastatic sites from renal cell carcinoma on 18F-FDG PET/CT scans in post-radical nephrectomy status. The first case resolves the venous migration of the tumor as a malignant thrombus arising from a remnant stump of the left renal vein, passing through hemiazygos vein further into the azygos vein and finally into the superior vena cava just before entering into the right atrium. The second case demonstrated extensive skeletal muscle deposits involving the muscles of the trunk as well as upper and lower extremities.
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Aurangabadkar et al. (2013) conducted a case report in Renal cell carcinoma (n=2). 18F-FDG PET/CT scan was evaluated on Detection of unusual metastatic sites. 18F-FDG PET/CT scanning detected unusual metastatic sites in two post-radical nephrectomy renal cell carcinoma patients, including venous migration to the right atrium and extensive skeletal muscle deposits.
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