Pleomorphic gastric leiomyosarcoma with retroperitoneal extension and hepatic metastasis: A case report

Figure 1 Preoperative contrast-enhanced computed tomography images. A: Hepatic metastatic lesion (4.4 cm × 3.9 cm); B: Mid-level tumor imaging (orange arrow, 14.1 cm × 18.6 cm × 26.8 cm); C: Tumor extension to the pelvic level. Orange arrow: The tumor mass.

Figure 2 Intraoperative and resected specimen views. A: Preoperative abdominal distension; B: Gross view post-resection; C: Cross-sectional view of abdominal tumor; D: Cross-sectional view of hepatic metastasis.

Figure 3 Histopathological and immunohistochemical findings. A-C: Hematoxylin and eosin staining at 100 ×, 200 ×, and 400 ×; D-F: Immunohistochemistry for smooth muscle actin (100 ×), desmin (100 ×), and caldesmon (100 ×).