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Prognostic factors relating to survival in uterine endometrioid carcinoma
Objective:
Epidemiologic and clinicohistopathologic prognostic factors of uterine endometrioid carcinomas were analyzed. The association of estrogen related factors, focused on adenomyosis in the prognosis of endometrioid carcinomas was also examined.
Methods:
Risk factors of surgically treated 286 patients with endometrioid carcinoma (Stage I-III) were statistically analyzed.
Results:
Overall a recurrence-free 5-year survival rate was 81% (Stage I, 94%, Stage II, 71% and Stage III, 40%). Significant prognostic factors were lymph node metastases (P = 0.0035) and serosal/parametrial invasion (P = 0.014) by multivariate analysis. Endometrioid carcinomas with co-existing adenomyosis tend to be associated with endometrial hyperplasia (P = 0.04, Fisher's exact test), diagnosed in less invasive status (myometrial invasion, P = 0.004 and serosal/parametrial invasion, P = 0.006) and therefore have a favorable prognosis (P = 0.01, log rank test).
Conclusions:
A favorable prognosis of endometrioid carcinomas with co-existing estrogen related factors (adenomyosis and endometrial hyperplasia) was suggested.