Abstract
e11092 Background: Due to advances in treatment modalities and palliative care patients with breast cancer live longer compared to the past and thus encounter an increased risk for secondary cancers. This study aims at finding the frequency of other solid cancers in a retrospective cohort. Methods: A search for the history of a non-breast solid tumor (NBST) among 1914 women admitted to our institute with stage I to IV breast cancer between 2006 – 2012 was conducted. Frequency of NBST according to temporal relation with breast cancer diagnosis was calculated Results: Overall 79 NBST and 75 patients (3.9 %) with another solid tumor were discovered. Of the patients 4 had more than one tumor. For these patients the median age at diagnosis was 55 (28 – 93), median follow-up time for breast cancer was 32 months (1 – 132). Post-menopausality was 60.8 %. The most common breast cancer histology was infiltrative ductal carcinoma (70.9 %). Of the 79 NBST, 34 (43.0 %) were diagnosed after breast cancer; 30 (38.0 %) before; and 15 (19.0 %) synchronously. Median time of diagnosis for NBST after breast cancer was 21 months (7 – 296). The most common malignancies were cancers of the ovary, thyroid and uterus (17.7, 15.2 and 11.4 %, respectively). Conclusions: The frequency of gynecological cancers and thyroid cancer along the course of breast cancer is high. Common environmental and genetic factors and may be involved. These patients should be followed closely
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