Not all liver tumors are alike — an accidentally discovered primary hepatic leiomyosarcoma: A case report

Figure 1 Preoperative contrast-enhanced computed tomography scan demonstrated a heterogeneous mass in the liver adjacent to the left branch of the portal vein.

Figure 2 Hepatic leiomyosarcoma. A: A well-circumscribed, white, solid mass of 4.3 cm exhibiting whorled features was seen on gross examination. B: Histologically, intersecting fascicles of spindle cells with elongate to ovoid nuclei displaying marked pleomorphism were observed [hematoxylin & eosin (HE), 40 ×]. C: Mitotic figures, including atypical ones, were frequent (7 mitosis/10 high power field) (HE, 200 ×). D: Foci of coagulative necrosis were observed (HE, 40 ×). E and F: Tumor cells were diffusely positive for desmin (100 ×) (E) and smooth muscle actin (100 ×) (F), in the absence of S100, c-Kit and discovered on GIST-1 (not shown).