Histopathological diagnosis of microvascular invasion in hepatocellular carcinoma: Is it reliable?

Figure 3 Illustration of counting microvascular invasion-positive lesions. A: Microvascular invasion (indicated by blue arrows) in two sequential slices showing the same lesion, which was recorded as one lesion; B: Two microvascular invasion lesions (indicated by blue arrows) on one slice that invaded the same microvessel, which were recorded as one lesion.