Case report
Primary extraskeletal osteosarcoma of omentum majus
1 Department of Surgery, Shaoxing County Center Hospital, Shaoxing, Zhejiang Province, PR China
2 Department of Gynecology, Shaoxing County Center Hospital, Shaoxing, Zhejiang Province, PR China
3 Department of General Surgery, Shaoxing County Center Hospital, Shaoxing, Zhejiang Province, PR China
4 Department of Pathology, Shaoxing County Center Hospital, Shaoxing, Zhejiang Province, PR China
World Journal of Surgical Oncology 2011, 9:25 doi:10.1186/1477-7819-9-25
Published: 19 February 2011Abstract
Extraskeletal osteosarcoma is a rare malignant soft tissue tumor. Here we present a case of a primary extraskeletal osteosarcoma arising from omentum majus in a 40-year-old Chinese woman. Ultrasonography of the pelvic cavity showed a large soft tissue mass with marked calcification. Complete surgical resection of the primary tumor was performed and the histopathological diagnosis was extraskeletal osteosarcoma of omentum majus. She was followed up without adjuvant radiotherapy and chemotherapy, and died from widespread intra-abdominal, lung and liver metastases 7 months postoperatively.
