Malignant spinal cord compression (MSCC) rarely presents in patients with endometrial cancer. It usually occurs months or years after the diagnosis of the primary tumor. A 65-year-old woman presented with a huge uterine tumor suspecting leiomyosarcoma. She underwent total abdominal hysterectomy and bilateral salpingo-oophorectomy. Histopathological examination revealed mixed carcinoma (small cell carcinoma and endometrioid adenocarcinoma) of the endometrium. She presented with upper abdominal pain, back pain, cystoplegia and paraplegia of lower extremities postoperatively. Magnetic resonance imaging revealed bone metastasis with destruction of the eighth thoracic vertebral body as the sites of metastasis. Vertebrectomy and irradiation therapy were performed for the lesion. Although she received systemic chemotherapy consisting of paclitaxel and carboplatin, she died 4 months after hysterectomy.