Fig. 2
MR Images (a–e) in a 73-year-old man with a 51-mm MTHCC. The lesion shows a non-rim arterial phase hyperenhancement with intratumoral arteries (white arrows) and wedge-shaped arterial corona enhancement (blue arrows) (b); non-peripheral washout and enhancing capsule in the portal and delayed phases (c and d). The gross appearance of the lesion after resection (f) and microscopic examination (g) showing thick sheets of hepatocytes (*) surrounded by vascular spaces (arrowheads). (Hematoxylin & Eosin, magnification×200). The criterion for the pathologic diagnosis of MTHCC is a hepatocellular carcinoma with a predominant macrotrabecular architectural pattern (more than 6 cells thick) involving more than 50% of the tumor [3]