Dedifferentiated Liposarcoma of the Retroperitoneum: A case report.
- Author:
Woo Sung MOON
;
Myoung Ja JEONG
;
Dong Geun LEE
;
Ho Yeoul CHOI
;
Sang Ho KIM
- Publication Type:Case Report
- Keywords:
Dedifferentiated liposarcoma;
S-100 protein;
alpha-1-antichymotrypsin
- From:Korean Journal of Pathology
1993;27(3):296-298
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
We report a case of dedifferentiated liposarcoma of retroperitoneum as a recurrent form in a 41 year old male. The patient received a extirpation for retroperitoneal mass and diagnosed as myxoid liosarcoma 4 years ago. The patient experienced 3 recurrences over a period of 4 years and diagnosed as myxoid liposarcoma in the second, third recurrence also. Histologically, the mass was composed of several clearly distinct elements : well differentiated liposarcoma, myxoid liposarcoma, myxoid malignant fibrous histiocytoma, poorly differntiated sarcoma, and fibrosarcoma. Immunohistochemically, S-100 protein was expressed in the area of spindle cell sarcoma, well differentiated liposarcoma, and malignant fibrous histiocytoma but alpha-1-antichymotrypsin was only expressed in the area of myxoid malignant fibrous histiocytoma.
