Mixed-type Retroperitoneal Liposarcoma—A Combination of the Well-differentiated and Myxoid Types: Case Report and Literature Review

Introduction: Soft tissue sarcomas represent less than 1.5% of malignant tumors.They are characterized by destructive growth, recurrence, and distant metastases to the lungs.The sites more frequently affected are the extremities in 40% and the retroperitoneum in 15-20% of the cases.Case description: A 57-year-old female presented reporting a history of pain for 12 months and a progressively growin…