Medline: 8431861

Cancer 71(3): 787-795, 1993.

Prognostic factors in well-differentiated early-stage epithelial ovarian cancer.

Schueler JA, Cornelisse CJ, Hermans J, et al.

Abstract:

Background:
The prognosis of patients with early ovarian cancer is good as compared with that of patients with advanced disease. However, there are no methods for predicting prognosis of early ovarian cancer, on which treatment decisions can be based.

Methods:
The prognostic significance of DNA flow cytometric and morphometric analysis was evaluated in 64 surgically treated patients with well-differentiated early-stage (International Federation of Gynecology and Obstetrics [FIGO] Stage IA, IB, IC, and IIA) epithelial ovarian cancer. The extent of the well-defined staging procedure was assessed strictly in every patient.

Results:
Only five patients died of recurrent ovarian cancer; all of these patients belonged to the inaccurately staged group. No significant relationship was found between clinicopathologic characteristics, such as menopausal status, FIGO stage, histologic cell type, and 5-year disease-free survival rate. Forty-two of the tumors had a mitotic activity index (MAI) of less than 30, and 43 of the tumors showed a volume percentage epithelium (VPE) of less than 65. Neither as a single parameter nor in combination did MAI and VPE correlate significantly with disease-free survival. Thirty-two tumors (50%) were DNA diploid, 15 were considered wide-CV-diploid, and 17 were aneuploid. Nearly 90% of the tumors showed DNA indices (DI) of 1.40 or less. The 5-year disease-free survival rate was significantly lower (61%) for patients with DI greater than 1.40 than for those with DI of 1.40 or less (96%) (P < 0.005). From the total number of five patients who died of their disease, three had tumors with DI in the tetraploid range.


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