Final answer:
The most common pathologies of breast cancer include Ductal carcinoma in situ (DCIS), Lobular carcinoma in situ (LCIS), Invasive ductal carcinoma (IDC), and Invasive lobular carcinoma (ILC), with IDC being the most common form.
Step-by-step explanation:
Breast cancer consists of several types, each with its own level of severity and treatment options. The most common pathologies of breast cancer include:
- Ductal carcinoma in situ (DCIS): This is a non-invasive condition where abnormal cells are found in the lining of a breast duct. DCIS is considered the earliest form of breast cancer.
- Lobular carcinoma in situ (LCIS): LCIS is a marker for increased breast cancer risk. Although not considered a true cancer, it indicates that a person is at higher risk of developing breast cancer.
- Invasive ductal carcinoma (IDC): This is the most common type of breast cancer, representing about 70-80% of all cases. IDC starts in a milk duct and then invades the fibrous or fatty tissue of the breast outside of the duct.
- Invasive lobular carcinoma (ILC): Starting in the milk-producing glands, ILC is the second most common type of breast cancer. It tends to be more challenging to detect on a mammogram than IDC.
Early detection through screening can significantly increase the chances of successful treatment. A biopsy is necessary for a definitive diagnosis of breast cancer, and the choice of treatment will depend on the specific type and stage of the cancer involved.
Among these types, invasive ductal carcinoma is the most common form of breast cancer. Understanding these different pathologies can aid in the early detection and treatment of breast cancer, which is essential for a better prognosis.