What image did Mary see when she went to the hospital to visit her grandmother after the surgery on her leg?

The day after Grandma Moore's surgery, Charlie thought it would cheer her mother up to bring the young girls to the hospital for a visit. When Mary entered the room, she was horrified to see her grandmother's amputated leg, which looked like a pork roast, totally exposed and bloody. Grandma was also mumbling incoherently and her mouth was gaping for its lack of dentures. The whole experience was deeply traumatic to Mary.