A high power view of the typical light blue staining ground substance of a myxoid area in a liposarcoma. The green arrows point to the capillaries that are abundant in the myxoid area. Tumor of adult life, with a peak incidence between 40 and 60 years of age.
Retroperitoneal tumors occur somewhat more frequently in women.
There is no evidence that any race or geographical area is more prone to develop liposarcomas. The three most common locations are the thigh, the retroperitoneum, and the inguinal region. Liposarcomas typically manifest a lobulated appearance. Cut section may reveal a mucinous appearance, especially if the myxoid component is prominent. Typically, at least some evidence of yellow color, due to the lipid material, is present.