Irregularly shaped breast nodule classified as BI-RADS category 3—could it be breast cancer?
Jun 05, 2023
Source: Cainiu Health
Dr. Yu Xiaopeng
Introduction
Whether an irregularly shaped BI-RADS category 3 nodule in the breast indicates breast cancer cannot be determined solely based on its category 3 classification and irregular shape. It may be breast cancer, but it could also be caused by other benign conditions. The detailed analysis is as follows: Breast cancer is typically a malignant tumor resulting from uncontrolled proliferation of breast epithelial tissue due to various factors. It often presents as a hard mass with an uneven surface.
Whether an irregularly shaped BI-RADS category 3 breast nodule indicates breast cancer cannot be determined solely by the category 3 classification and irregular shape. It may be breast cancer, but it could also be caused by other conditions. The specific analysis is as follows:
1. Breast cancer
Breast cancer is typically a malignant tumor caused by uncontrolled proliferation of breast epithelial tissue due to multiple factors. The mass is usually hard, with an uneven surface and poorly defined borders from surrounding tissues, making it difficult to move within the breast. Only a minority of cases are accompanied by varying degrees of dull or sharp pain. Tumors can also cause changes in the breast skin, leading to retraction and resulting in a dimpling appearance on the skin surface—known as the "dimple sign." Additionally, the skin may develop a "peau d'orange" (orange peel-like) appearance.
2. Not breast cancer
Under normal circumstances, fibrocystic breast changes may also present as BI-RADS category 3 nodules with irregular shapes. These can manifest as granular nodules, localized or diffuse glandular hyperplasia, etc. Such masses are generally small and vary in shape, often changing in size or firmness—enlarging or shrinking, becoming harder or softer—along with the menstrual cycle.
To determine definitively whether it is breast cancer, patients are advised to undergo a thorough examination at a hospital to clarify the underlying cause and receive appropriate treatment promptly, so as to avoid delaying diagnosis and management.
