Dedifferentiated Liposarcoma of Sigmoid Colon: A Case Report
Abstract BACKGROUND: Primary liposarcoma of the colon with obstruction is a rare tumor, and patients with dedifferentiated liposarcoma of the sigmoid colon have not been reported in Pubmed for decades.CASE PRESENTATION: We reported that a 75-year-old female patient was admitted to the hospital due to abdominal pain and bloating. The imaging examination revealed that the sigmoid colon liposarcoma was considered malignant. She was treated with pelvic mass resection + partial colectomy + intestinal fistula. Postoperative pathological immunohistochemical prompts Differentiated sigmoid colon liposarcoma.CONCLUSIONS: We reported a rare case of dedifferentiated liposarcoma of the sigmoid colon, which is easily confused with atypical lipomatous tumors. Through this case, we hope to provide a reference for the diagnosis and treatment of dedifferentiated liposarcoma of the sigmoid colon.