rare case of a giant well-differentiated retroperitoneal liposarcoma

Retroperitoneal liposarcoma is among the most common primary retroperitoneal tumors, along with malignant fibrous histiocytoma and leiomyosarcoma. It is slowgrowing and has the propensity to displace rather than invade adjacent structures. Histologic subtypes include well-differentiated, myxoid (the most common form), and pleomorphic. Liposarcoma is most often seen in the fifth to seventh decades and is more common in men. We report the case of a patient who presented with a well-differentiated giant retroperitoneal liposarcoma.