Rare and lacking typical clinical symptoms of liver tumors: Four case reports

Figure 1 Magnetic resonance imaging and pathological results of primary hepatic fibrosarcoma. A: Magnetic resonance imaging (MRI) T2 weighted imaging of the compressed fat sequence revealed high signal density (arrow); B: MRI revealed mild heterogeneity with modestly distinct margins during the arterial phase (arrow); C: The lesion in the hepatobiliary phase showed low signal intensity (arrow); D: Hematoxylin and eosin staining 400 ×; E: Ki-67 positivity rate of approximately 60%, immunohistochemical staining 400 ×; F: Vimin (+), immunohistochemical staining 400 ×.