Dedifferentiated Liposarcoma Arising in an Esophageal Polyp : A Case Report

Abstract EN

Liposarcoma is one of the most common sarcomas in adults, but only rarely presents as an esophageal primary.

There have been several reports of well-differentiated liposarcoma (WDL) arising in the esophagus, but we present a case of dedifferentiated liposarcoma (DL) presenting as a large esophageal polyp.

We believe this is the first reported case of DL of the esophagus with morphologic evidence of both well-differentiated and dedifferentiated components.

The diagnosis was confirmed by demonstration of CPM gene amplification by fluorescence in situ hybridization (FISH).