Dermatologist Hooman Khorasani, chief of Mohs, reconstructive and cosmetic surgery at Mount Sinai Hospital, treated a man's 18-inch-long squamous cell carcinoma using a tissue graft made from the bladder of a pig. Khorasani excised the cancer, poured a powder form of the tissue onto the wound, then attached three layers of the graft to the wound, saving the man's leg from amputation. The porcine cells stimulated the patient's own cells to grow normal tissue.

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