Symptoms at diagnosis as independent prognostic factors in retroperitoneal liposarcoma

Molecular and Clinical Oncology
Satoru TaguchiYukio Homma

Abstract

The prognostic factors of retroperitoneal liposarcoma have yet to be clearly determined due to its rarity, whereas the prognostic value of symptoms at diagnosis has never been evaluated to date. In this context, we reviewed 24 consecutive patients with primary retroperitoneal liposarcoma who underwent surgical resection with curative intent at our institution. The Kaplan-Meier analysis and the log-rank test were used to estimate progression-free survival (PFS; primary endpoint) and sarcoma-specific survival (SSS; secondary endpoint). The effect of various clinicopathological factors, including symptoms at diagnosis, on these two endpoints was assessed with a Cox proportional hazards model. During the study period, 11 patients (45.8%) developed recurrence after the initial surgery and 8 (33.3%) succumbed to retroperitoneal liposarcoma, with a median follow-up of 64 months. A total of 16 patients (66.7%) had symptoms at diagnosis, while the remaining 8 (33.3%) were diagnosed incidentally. The symptoms were palpability of the tumor (n=8); abdominal pain/fullness (n=3); flank pain/fullness (n=2); lower extremity pain (n=1); testicular pain due to varicocele (n=1); and discomfort on urination (n=1). Patients with symptoms at diagnos...Continue Reading

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