Stages من إعداد فريق مايو كلينك Ductal carcinoma in situ (DCIS) is a stage 0 breast cancer. The stage is a way to describe the size of the cancer and whether it has spread. Breast cancer stages range from 0 to 4. A lower number means the cancer is less advanced and more likely to be cured. As the cancer grows into the breast tissue and gets more advanced, the stages get higher. Stage 0. When DCIS occurs on its own, it's a stage 0 breast cancer. This means the cancer is found inside a duct and shows no signs of growing into nearby tissue. Stages 1, 2, 3 and 4. Stages 1 through 4 are used for invasive breast cancers. If an area of DCIS is found along with invasive cancer, it's considered an invasive cancer. This includes very small areas of invasive cancer, called microinvasions. Sometimes tests suggest that the cancer is DCIS, but surgery shows that it is invasive breast cancer. Because of this, the stage might not be known until after surgery. طلب تحديد موعد التشخيص والعلاجSurvival rates 08/08/2026 تبادلها عبر ارسلها على الفيس بوكارسلها في تغريدة Living with سرطان القنوات الموضعي (DCIS)? Connect with others like you for support and answers to your questions in the Breast Cancer support group on Mayo Clinic Connect, a patient community. Breast Cancer Discussions Anastrozole Brain Fog 94 Replies Thu, Sep 17, 2026 chevron-right Have you ever had hiccups with or after chemotherapy? 132 Replies Wed, Sep 16, 2026 chevron-right Has anyone had a swollen lymph node under their armpit? 21 Replies Fri, Sep 11, 2026 chevron-right See more discussions إظهار المَراجع Niederhuber JE, et al., eds. Cancer of the breast. In: Abeloff's Clinical Oncology. 6th ed. Elsevier; 2020. https://www.clinicalkey.com. Accessed March 1, 2024. Townsend CM Jr, et al. Diseases of the breast. In: Sabiston Textbook of Surgery: The Biological Basis of Modern Surgical Practice. 21st ed. 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Trends in treatment patterns and outcomes for ductal carcinoma in situ. Journal of the National Cancer Institute. 2015; doi:10.1093/jnci/djv263. Breast SPOREs. National Cancer Institute. https://dctd.cancer.gov/research/spores/focus-area/breast. Accessed April 17, 2026. Member institutions. Alliance for Clinical Trials in Oncology. https://www.allianceforclinicaltrialsinoncology.org/main/public/standard.xhtml?path=%2FPublic%2FInstitutions. Accessed April 17, 2026. Andreas A, et al., eds. The breast. In: Grainger & Allison's Diagnostic Radiology: A Textbook of Medical Imaging. 7th ed. Elsevier; 2021. https://www.clinicalkey.com. Accessed July 1, 2026. AskMayoExpert. Nipple discharge. Mayo Clinic; 2024. سرطان القنوات الموضعي (DCIS)الأعراضوالأسبابالتشخيصوالعلاجStagesSurvivalratesالأطباءوالأقسامالرعاية فيMayoClinic CON-20371874 الأمراض والحالات سرطان القنوات الموضعي (DCIS)