Recurrence rates in patients with uterine papillary serous cancer with and without breast cancer.

Abstract

e16529 Background: Women with uterine papillary serous carcinoma (UPSC) are at increased risk for breast cancer and the converse is true. A genetic association between breast cancer and UPSC was recently described and counseling women faced with more than one cancer diagnosis can be difficult. Our objective was to evaluate recurrence rates of women with UPSC to those with UPSC and a personal history of breast cancer (UPSCBR). Methods: Data was collected for UPSCBR patients at two academic institutions between 7/1990 and 7/2012. Patient demographics, pathology, disease stage, and treatments were recorded. A UPSC literature review was performed focusing on recurrences per number of at-risk patients by stage. We used the fixed effect Mantel-Haenszel method to estimate the common pooled effect (recurrence rate) for the UPSC studies and compared these to UPSCBR patients. Results: Forty-three UPSCBR patients were identified. Median age at diagnosis was 72 (49-93). Twenty-six patients were Caucasian, 14 African-American and 3 other. Twenty-four (56%) had early stage at diagnosis (IA-IC) and 19 (44%) had late stage (III-IV). All but one underwent surgical staging/debulking; 36 (90%) were optimally debulked. Twelve (50%) early stage and 17 (89.5%) late stage patients underwent adjuvant therapy with radiation and/or chemotherapy. Nine studies were identified with available recurrence data for early stage UPSC; 8 for late stage. The recurrence rate for stage IA UPSCBR patients was 2/11 (18%) [95% CI: 2 to 52%] compared to 11% [95% CI: 9.8 to 13%] in the UPSC literature. In IB/IC UPSCBR patients we had 3/13 (23%) [95% CI: 5 to 54%] recur versus 21% [95% CI: 19 to 23%]. In later stages III/IV, 7/19 (37%) [95% CI:16 to 62%] UPSCBR patients had recurrences compared to 58% [95% CI: 56 to 60%] of UPSC patients. Conclusions: There is an association between breast cancer and UPSC with regard to incidence. We failed to find evidence of an appreciable difference in recurrence rates between our UPSCBR patients and UPSC patient groups from other reported studies. While diagnosis with two primary malignancies can be challenging for patients, this does not appear to impact their risk of recurrence.