title: Retroperitoneal inflammatory liposarcoma in a patient with non-hodgkin lymphoma: a report highlighting diagnostic pitfalls.
abstract: Well differentiated liposarcoma (WDLS) is the commonest subtype of liposarcoma. Recognised subtypes of WDLSs are lipoma-like, sclerosing, spindle cell and inflammatory. The inflammatory variant of WDLS also known as "lymphocyte-rich liposarcoma" is rare. We present a case of inflammatory WDLS occurring in the retroperitoneum, in a patient with a past history of non-Hodgkin lymphoma. We outline the histological features, discuss the differential diagnoses and highlight the diagnostic pitfalls in interpretation of this lesion on fine needle biopsy.
authors.affiliation: Tissue Pathology and Diagnostic Oncology, Royal Prince Alfred Hospital, Camperdown, NSW 2050, Australia.
authors.forename: Cathy S
authors.initials: CS
authors.lastname: Lim
authors.forename: Caroline L
authors.initials: CL
authors.lastname: Cooper
authors.forename: Warick
authors.initials: W
authors.lastname: Delprado
authors.forename: James
authors.initials: J
authors.lastname: Kench
authors.forename: Stanley W
authors.initials: SW
authors.lastname: McCarthy
authors.forename: Richard A
authors.initials: RA
authors.lastname: Scolyer