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Invasive ductal carcinoma (IDC), also known as infiltrating ductal carcinoma, is cancer that began growing in the duct and has invaded the fatty tissue of the breast outside of the duct. IDC is the most common form of breast cancer, representing 80 percent of all breast cancer diagnoses.
As with any breast cancer, there may be no signs or symptoms. A mammogram may reveal a suspicious mass, which will lead to further testing. A woman may also find a lump or mass during a breast self-exam. The following are possible signs of breast cancer and should immediately be reported to your physician for further evaluation:
Same Day Results
At the Johns Hopkins Breast Center, we know how quickly patients want results from a biopsy or scan if there is a suspicion of breast cancer. We follow strict guidelines for biopsies and pathology reports. Most of our patients will receive the probability of cancer immediately following their biopsy procedure and a pathology confirmation within 24 hours.
Learn more about the steps of diagnosis, including:
Treatment for all types of IDC is determined by the exact type of cancer and staging. Depending on the size and spread of the tumor(s), most women will undergo a combination of any of the following treatments:
Based on individual markers and prognostic factors, including the staging of your tumor, your physician will work to give you a prognosis. At Johns Hopkins Medicine, our team of breast cancer specialists is dedicated to developing cutting-edge techniques for surgery, breast reconstruction, chemotherapy, biologic targeted therapy, radiation therapy and other hormonal therapies. Our research allows us to make great strides forward for patients with breast cancer.
There are four types of invasive ductal carcinoma that are less common: