Giant Mediastinal Liposarcoma: A Rare Yet Distinct Clinical Entity.

Mediastinal liposarcomas are rare tumors that occasionally present as unusually large and rapidly growing mediastinal masses resulting in compressive symptoms. We present a case of a 48-year-old woman undergoing resection of a mediastinal liposarcoma of massive proportion and propose that "giant mediastinal liposarcomas" be identified as a distinct clinical entity.