Fig. 2

Sarcomatous intrahepatic cholangiocarcinoma in a 55 year-old man. Pre-contrast T1WI and T2WI weighted images exhibit a subcapsular mass with multilocular cystic changes and hemorrhage (a, b). The mass is inhomogeneous restricted with an obviously decreased diffusivity in the center ©. The hypo-vascular mass mainly shows irregular peripheral rim enhancement on the arterial phase (d), followed by centrally progressive enhancement with septa on the equilibrium phase (e), and capsule formation is found (f). The tumor is ruptured with hemorrhage found in the subcapsular space (white arrow) (b) and invades the diaphragm (d). The bisected specimen shows a fragile solid and partially necrotic white to tan mass with massive hemorrhage inside and around the tumor (f). H & E stain shows a fibrous capsule, separating the normal liver from tumor cells. The neoplastic cells with pleomorphism have a poor cell adhesion (g)