Fig. 3

Macroscopic and microscopic findings of sarcomatous ICC. a Cut surface shows (right) a well-demarcated, yellowish, nodular lobulated solid component and (left) an elastic soft, cystic component. Micropathologically, b the right component was a moderately-to-poorly differentiated adenocarcinoma, with a trabecular and irregular tubular pattern, infiltrated into liver parenchyma (hematoxylin and eosin [HE] staining × 100). c The left component was sarcomatous, mainly composed of oval- to spindle-shaped cells with focal dilated gland ductal structure (H&E × 100)