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18F-FDG PET/CT Findings in Portal Vein Thrombosis and Liver Metastases

18F-FDG PET/CT is a valuable noninvasive tool in oncologic imaging, and its application in the diagnosis of liver metastases has been very convincing. Both the sensitivity and the specificity of 18F-FDG PET/CT are high for detecting liver metastases from various tumors including colorectal, breast, and lung. Such liver metastases are typically 18F-FDG–avid. We present atypical 18F-FDG PET findings in a lung cancer patient with known liver metastases and PVT.