title: Dedifferentiated liposarcoma arising in an esophageal polyp: a case report.
abstract: 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).
authors.affiliation: Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA.
authors.forename: Jorge
authors.initials: J
authors.lastname: Torres-Mora
authors.forename: Ann
authors.initials: A
authors.lastname: Moyer
authors.forename: Mark
authors.initials: M
authors.lastname: Topazian
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Alexander
authors.forename: Tsung-Teh
authors.initials: TT
authors.lastname: Wu
authors.forename: Amber
authors.initials: A
authors.lastname: Seys
authors.forename: Karen
authors.initials: K
authors.lastname: Fritchie