Infiltrative non-mass-like hepatocellular carcinoma initially presenting with isolated malignant portal vein thrombosis: A case report and review of the literature
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Fig. 1.
Gray-scale US image shows the left portal vein expanded with occlusive tumor thrombus (white arrow)
Fig. 2.
Color Doppler US image reveals the presence of diagnostic arterial flow within the tumor thrombus
Fig. 3.
Axial contrast-enhanced CT images show streaky and heterogeneous enhancement of the PV thrombus during the late arterial phase (A) with washout during the portal venous phase (B), which is diagnostic of tumor thrombus
Fig. 4.
On sonoelastographic image, normal parenchyma is coded in red-green color (star mark), whereas portal vein tumor thrombosis and the affected left lobe parenchyma are coded in blue-green (black arrow) and pure blue color (white arrow), respectively. Based on the color bar on the left side, red color reflects less stiff tissue, while blue color reflects more stiff tissue than the rest. Besides, green color reflects medium-stiff tissue