Sarcomatoid intrahepatic cholangiocarcinoma mimicking liver abscess: A case report

Figure 1 Magnetic resonance imaging results. A-B: There is an abnormal lesion occupying the right lobe of the liver, hyperintense on non-contrast T2 weighted images and hypointense on non-contrast T1 weighted images; C-E: A honeycomb-like structure and persistent enhancement with slight transient hepatic parenchymal enhancement around it and adjacent proximal bile duct dilatation with enhancement of the wall on contrast-enhanced T1 weighted images were observed.

Figure 2 Computed tomography images and histopathologic findings (100 ×). A-C: The right lobe of the liver shows a patchy low-density shadow of approximately 7.0 cm × 5.6 cm with heterogeneous enhancement on magnetic resonance imaging; D: The cells are spindle to round in shape, with scanty cytoplasm and hyperchromatic nuclei, forming nests and microglandular structures.

Figure 3 Survival rates of operated sarcomatous intrahepatic cholangiocarcinoma and non-operative sarcomatous intrahepatic cholangiocarcinoma. Survival rates of 44 cases of sarcomatous intrahepatic cholangiocarcinoma (SICC) calculated by Kaplan–Meier method [operated SICC (black solid line) and non-operative SICC (grey solid line)] are shown. The difference was estimated using the generalized log-rank method. P values of less than 0.05 are considered statistically significant.