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Annals of Surgical Oncology, Vol 7, Issue 7 535-543, Copyright © 2000 by Society of Surgical Oncology

ARTICLES

Clinico-pathological data and prognostic factors in completely resected AJCC stage I-III liposarcomas

P. H. Nijhuis, P. R. Sars, B. E. Plaat, W. M. Molenaar, W. J. Sluiter and H. J. Hoekstra
Department of Surgical Oncology, Groningen University Hospital, The Netherlands.

BACKGROUND: In general, although biological behavior and prognosis of liposarcomas (LPS) are more favorable compared with most other soft tissue sarcomas (STS), prognosis can vary widely depending on tumor characteristics, especially histological subtype and tumor grade. PATIENTS AND METHODS: All consecutive, completely resected stage I-III LPS (as determined by the American Joint Committee on Cancer staging guidelines), treated at the Groningen University Hospital from 1977-2000, were analyzed. RESULTS: A total of 69 patients, 35 males and 34 females, median age 51 (range 11-80) years, were reviewed. After a median follow-up of 71 (range 5-231) months, the overall local recurrence and metastasis rate at five years after diagnosis were 27% and 16%, respectively. Retroperitoneal localization was a significant negative prognostic factor regarding local recurrence; dedifferentiation, grade II-III, and deep location regarding distant metastasis; and dedifferentiation, grade II-III, stage II-III, size >20 cm and non-radical resection regarding survival. CONCLUSIONS: LPS have a relatively mild biologic behavior, with the exception of very large, deeply located, dedifferentiated and/or grade II-III LPS. Radical resection is important for disease-specific survival. LPS have a relatively mild biologic behavior, with the exception of very large, deeply located, dedifferentiated and/or grade II-III LPS.


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