F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography Scan Finding of Portal Venous Tumor Thrombus in a Case of Primary Gastric Malignancy.

Intraluminal portal venous tumor thrombus is an infrequent association with primary gastric malignancy. Ultrasonography features such as low pulsatile flow within the thrombus, expansion of vein, and enhancement of thrombus are nonspecific findings for diagnosis. F-fluorodeoxyglucose positron emission tomography-computed tomography scan can differentiate between the benign and malignant thrombus as well as it helps proper metastatic work up. We report such a case.