Diagnostic value for extrahepatic metastases of hepatocellular carcinoma in positron emission tomography/computed tomography scan

Figure 1 A 51 year-old-female with hepatocellular carcinoma was suspicious of lung metastasis (arrows) in both chest computed tomography and ¹⁸F-fluorodeoxyglucose positron emission tomography/computed tomography scan which turned out to be nontuberculosis mycobacterium infection on percutaneous transthoracic needle aspiration. A: High-resolution computed tomography (CT); B: Contrast-enhanced CT; C: ¹⁸F-fluorodeoxyglucose positron emission tomography (¹⁸F-FDG PET); D: PET/CT scan.

Figure 2 The area under the receiver operating characteristic curve to estimate the optimal cutoff of average standardized uptake value to predict extrahepatic metastasis. AUROC: Area under receiver operating characteristic.

Figure 3 Cumulative survival rate in patients with hepatocellular carcinoma by intrahepatic tumor size (A), average standardized uptake value (B), isometabolic hepatocellular carcinoma (C) and extrahepatic metastasis (D). SUV: Standardized uptake value.