Low-grade fibromyxoid sarcoma of the liver: A case report

Figure 1 Multi-detector computed tomography of the abdomen. 1: Tumor; 2: Infiltration of proper hepatic artery from the origin of the gastro-duodenal aretry up to the right second branching 3-complete infiltration of the left portal vein.

Figure 2 Histopathology. A: Mix of heavily collagenizedhypocellular zones -giant rosettes and cell-rich part of tumor [hematoxylin eosin staining (HE), 40 ×]; B: Short fascicular and characteristic whorling growth patterns are often seen. There are arcades of curvilinear blood vessels accompanied by perivascular hyaline degeneration (HE, 100 ×).

Figure 3 Immunohistochemistry. Tumor cells were diffusely and strongly positive for vimentin and MUC4, CD99 and epithelial membrane antigen were diffuse and slight expressed, and cytokeratin, smooth muscle actin, S-100 protein and neuron specific enolase were negative.

Figure 4 Intraoperative finding. T: Tumor; PV: Portal vein; CHA: Common hepatic artery; GDA: Gastroduodenal artery; CBD: Common bile duct.

Figure 5 Reconstruction of the common hepatic artery with saphenous vein graft. CHA: Common hepatic artery.

Figure 6 Abdominal and pelvic computed tomography after left hepatectomy-axial images. A: There is no tumor reccurence on surgical margin (white star) and no focal lesions in right liver lobe; B: An ill-defined lytic lesion (white star) of the L5 vertebral body is seen without periosteal reaction, representing solitary osseous metastasis of liver sarcoma.

Figure 7 Histopathology. Prominent vascularity in myxoid areas and perivascular hypercellularity seen in metastatic tumor corelate with changes in primary tumor.