Final answer:
The procedure to remove extensive benign disease of the breast is known as a simple mastectomy, which removes the breast tissue without taking out lymph nodes or chest muscles.
Step-by-step explanation:
The breast procedure performed to remove extensive benign disease is B. simple mastectomy.
A simple mastectomy involves removing the breast tissue, nipple, areola, and skin but not the lymph nodes or muscle tissue from under the breast. It is typically performed to treat or prevent breast cancer, but it is also the procedure designated for extensive non-cancerous (benign) diseases of the breast.
In contrast, axillary node dissection is a procedure to remove lymph nodes to check for spread of cancer, radical mastectomy involves removing the entire breast along with underlying muscle and lymph nodes, and a modified radical mastectomy removes the entire breast and some of the axillary lymph nodes but leaves the chest muscle intact.