From: Diagnostic accuracy of ultrasound and alpha-fetoprotein measurement for hepatocellular carcinoma surveillance: a retrospective comparative study
Ultrasound results
No focal lesions
Benign focal lesions
Indeterminate
HCC
AFP category
Normal < 20 ng/ml
230
9
33
7
Abnormal > 20 ng/ml
29
0
18
Total
259
51
16