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In page Mastectomy:

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Breast surgery was first described 3000 years ago.[1] In the earliest stages, breast tumors were treated with simple cauterization. Later, alternating incision and cauterization with complete removal of tumors was suggested by Leonides, one of the first breast oncologic surgeons recorded in history.[2] Other surgeons recommended excision and cauterization only if the tumor could be removed completely; otherwise, avoiding surgery was recommended. Ambrose Pare (b. 1510), a well-known surgeon from Paris who was well known for his experience treating soldiers who were injured, proposed a multi-tiered approach to breast surgery. While superficial cancers could be excised, more advanced cancers were managed through compression by lead plates to reduce blood supply to the tumor.[citation needed]