WELLCOME COLLECTION
On May 28, 1889, a 38-year-old woman was placed on an operating table at the Johns Hopkins Hospital in Baltimore. Patient L.S. was married, with ten children, and had a cancerous tumor occupying most of her left breast. That day, and in subsequent operations over several months, her surgeon, William Halsted, painstakingly sliced out not only the tumor, but the pectoral muscle behind it, and the lymph nodes in her armpit. Then, he grafted skin—likely from her thigh—to patch up the gaping wound.
The procedure was unprecedented in the U.S. Although records of mastectomy-like procedures stretch back to at least the second century A.D., American physicians typically considered breast cancer patients doomed from the outset, and prescribed ointments and other less invasive measures. But L.S., ...