How much do you know and understand about breast cancer? Are you sufficiently familiar with the risk factors and screening methods for breast cancer? Risk factors for breast cancer include genetic factors, age, lifestyle, and a history of hormone therapy. In this month’s issue, an article on breast cancer will Breast cancer is one of the most common cancers in women and is a widely prevalent disease worldwide. We are now in an era where it is estimated that one in nine women will develop it. However, it can also occur in men. Breast cancer is a malignant tumour that develops within the breast tissue, caused by the abnormal growth and proliferation of normal cells in the breast. Key symptoms include lumps or changes in the shape of the breast, changes in the skin of the breast, and nipple discharge. With the increasing prevalence of mammography screening I100.0cover diagnosis and treatment, as well as personal experiences of individuals who have experienced breast cancer. Through the personal experiences of writer Kana Nishino, you will be able to deepen your understanding of breast cancer.in recent years, cases where cancer is detected at the earliest stage, known as “Stage 0,” have been on the rise. Early detection of breast cancer and receiving appropriate treatment are crucial. This involves detecting the lesion when the cancer is not very advanced. The incidence of breast cancer increases rapidly from the late 30s, and among women aged 30 to 64, breast cancer is the leading cause of cancer-related deaths in women. Therefore, in Japan, breast cancer screening is recommended for women aged 40 and above.Stage IV: Cancer has metastasized to other sites, with the possibility of recurrence in distant locations. At this stage, cancer has spread to other organs or tissues, typically presenting a challenging prognosis for cure. According to data released by the National Cancer Center in March 2020, the survival rates vary by stage as follows for breast cancer. Based on the data, there is a tendency for treatment and survival rates to become more difficult as the stage of breast cancer advances.Relative Survival Rate for WomenII96.1（表参道総合医療クリニック）https://www.omotesando-amc.jp/content/breast-cancer-stages/III80.0IV40.0(SIMADZU PINKRIBBON PROJECT) https://www.shimadzu.co.jp/pinkribbon/learn/index.html About Breast Cancer Breast cancer stages For breast cancer, there are 5 stages – stage 0 followed by stages 1 to 4.Stage 0 (Non-invasive Breast Cancer): At this stage, cancer cells are confined within the milk ducts and have not invaded surrounding tissues. Typically, cancer at this stage is localized, and early detection is common.Stage I: Cancer is present within the breast tissue and may have invaded surrounding tissues minimally. The cancer is typically small, and metastasis to nearby lymph nodes is often absent.Stage II: Cancer has spread within the breast tissue or to surrounding tissues, often with metastasis to nearby lymph nodes. This stage indicates advanced cancer progression and may present increased treatment complexity.Stage III: Cancer has spread from the breast tissue to surrounding tissues or lymph nodes. It is typically considered advanced cancer, with a higher risk of metastasis to other sites.5Takumi Ota The University of British ColumbiaAbout Breast Cancer
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