There are a number of types of breast cancer, which are categorized according to their originating cell type and aggressiveness. Ductal carcinoma of the breast is a very common type of invasive breast cancer that originates from the ducts of the breast and invades neighboring tissue. Early diagnosis of ductal carcinoma is key to effective treatment, so recognizing the symptoms of this cancer is essential.
Breast Lump
A breast lump may be a symptom of ductal breast cancer, although the presence of a lump alone is not sufficient to diagnose the disease, since many disorders can cause breast lumps. A breast lump due to ductal carcinoma is usually targeted in one area of the breast, and does not move. The lump will often feel very firm, due to the high density of cells within the lump and the formation of hard scar tissue around the tumor. Generally the lump will not be painful or tender to the touch, although ductal carcinoma lumps can be painful in some cases.
Lumps as a result of ductal cancer can be detected during monthly breast self-examinations, or gynecological examinations at a doctors office. Ductal cancer can also be detected on a mammogram, and diagnosed following additional testing.
Skin Changes
In some cases, ductal breast cancer can lead to skin irritation. As the cancer develops, healthy tissue surrounding the tumor becomes damaged, and healthy cells are killed to accommodate the growth of the tumor. As the cancer grows, the tumor cells invade the lymph nodes and may block the drainage of lymph fluid, leading to an accumulation of lymph fluid in the breast. The end result is abnormal dimpling or wrinkling of the skin due to the increased pressure from the additional fluid in the breast. As the cancer progresses, the skin overlying the breast tissue may be invaded with cancer cells, leading to skin irritation, redness and swelling.
Nipple Discharge
In some cases, ductal breast cancer can lead to abnormal nipple discharge. According to San Diego State University, nipple discharge is reported in up to 15 percent of women with benign breast tumors, and up to 3 percent of women with breast cancer. Nipple discharge may be a sign of ductal breast cancer if the discharge occurs in only one nipple, or if discharge occurs without any manual stimulation of the nipple. Any discharge from a single duct is of concern. Multiple duct discharges are rarely caused by cancer. Analysis of breast discharge, along with a thorough breast examination can test for the presence of ductal breast cancer.
