Clinical Breast Exam Rarely Detects Second Breast Cancer After DCIS
12 Jan 2024
Clinical ResultASCO
FRIDAY, Jan. 12, 2024 -- For patients undergoing surveillance following diagnosis and treatment of ductal carcinoma in situ (DCIS), very few second breast cancers are detected by clinical breast examination by a physician, according to a study published online Dec. 28 in the Journal of the National Comprehensive Cancer Network.
Bethany T. Waites, M.D., from the Kaiser Permanente San Francisco Medical Center, and colleagues performed a retrospective cohort study of patients with DCIS treated between Jan. 1, 2008, and Dec. 31, 2011, to assess the modes of detection of second cancers. The study cohort included 1,550 women (median age at diagnosis, 59 years), who were followed for a median of 10 years.
During follow-up, 179 women (11.5 percent) were diagnosed with a second breast cancer: 43.0, 54.8, and 2.2 percent were ipsilateral, contralateral, and presented with distant metastases, respectively. Of the second cancers, 61.5, 36.3, and 2.2 percent were invasive, DCIS, and Paget disease, respectively. The researchers found that second breast cancers were imaging-detected, patient-detected, physician-detected, and detected incidentally on imaging or pathology from procedures unrelated to oncologic care in 74.3, 20.1, 2.2, and 3.4 percent of cases, respectively.
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Disclaimer: Statistical data in medical articles provide general trends and do not pertain to individuals. Individual factors can vary greatly. Always seek personalized medical advice for individual healthcare decisions.
Posted January 2024
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