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  • Title: Reevaluating the safety of fertility-sparing hormonal therapy for early endometrial cancer.
    Author: Yang YC, Wu CC, Chen CP, Chang CL, Wang KL.
    Journal: Gynecol Oncol; 2005 Nov; 99(2):287-93. PubMed ID: 16051341.
    Abstract:
    OBJECTIVE: To evaluate the safety of fertility-sparing hormonal therapy for endometrial cancer in young patients. METHODS: Six patients diagnosed with endometrial adenocarcinoma grade I and had undergone progestin treatment were reviewed. Four patients failed progestin treatment and were then found at surgery to have both endometrial and ovarian cancers. A clonality assay using the human androgen receptor gene as the X-linked polymorphic marker and immunohistochemistry for steroid hormone receptor expression were used to delineate the relation between the endometrial and ovarian lesions and to explore possible causes of treatment failure. RESULTS: The patients were followed for a mean of 48.8 months. Four of the six responded to the treatment at a mean of 3.5 months. Two of these patients had a recurrence within a mean of 4.5 months after their initial response. Two patients did not respond to progestin treatment. At surgery in those 4, both endometrial and ovarian tumors were found. All 6 are still alive, and 2 successfully delivered healthy infants. The clonality assay revealed an independent cell origin for the endometrial and ovarian lesions in 2 of the 4 women who failed progestin treatment. Progesterone receptors were absent in both endometrial and ovarian tumors in 2 of these 4 patients. CONCLUSION: The absence of progesterone receptors may relate to the failure of progestin treatment. The use of progestin treatment for well-differentiated early endometrial carcinoma should be cautious and requires very careful clinical evaluation before and after treatment.
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