Resection of liposarcoma of the greater omentum: A case report and literature review. (2019)

• Record Type: Journal Article
• Authors: Hashimoto, Shintaro; Arai, Junichi; Nishimuta, Masato; Matsumoto, Hirofumi; Fukuoka, Hidetoshi; Muraoka, Masashi; Nakashima, Masahiro; Yamaguchi, Hiroyuki
• Is Part Of: International journal of surgery case reports. Volume 61(2019)
• Page Start: 20
• Page End: 25
• Publication Date: 2019
• Subjects: Omental liposarcoma -- Omental tumour -- Liposarcoma; Surgery -- Periodicals; Surgical Procedures, Operative -- Periodicals; Surgery; Electronic journals; Periodicals; 617.005
• DOI: 10.1016/j.ijscr.2019.06.067
• Languages: English
• ISSNs: 2210-2612

Abstract

Highlights: Intraabdominal liposarcoma including omental liposarcoma is rare. Liposarcoma can be difficult to distinguish from other lipomotous tumor. We surgically managed a case of liposarcoma of omentum ovserved as lipoma 3 years ago. Abstract: Introduction: Liposarcoma usually occurs in the retroperitoneum and limbs. Liposarcoma of the greater omentum is rare, and most information of such liposarcomas has come from case reports. Presentation of case: A 60-year-old woman was found to have an 8-cm intra-abdominal mass (suspected lipoma) by computed tomography. At the age of 63 years, she underwent a medical examination and a mass was palpated in the abdomen. Contrast-enhanced computed tomography and magnetic resonance imaging confirmed the presence of a huge intra-abdominal tumor with the omental artery passing through the mass. The tumor was simply resected. Histopathologically, the tumor was diagnosed as a well-differentiated liposarcoma, and the resection margin was microscopically negative. The patient had developed no recurrence or complications 9 months postoperatively. Discussion: Liposarcoma of the greater omentum is rare, and differentiation of liposarcoma from other tumors is challenging. Adjuvant therapy has not been established as an effective treatment, and radical (R0) resection of the tumor is recommended. Our case of liposarcoma of the greater omentum was surgically managed with good outcomes. Conclusion: The diagnosis of liposarcoma with a lipomatous tumor is challenging, and resection should be considered for huge intra-abdominal lipomatous tumors.