Chennai: The next time you drape a sari, you might want to re-tie that petticoat knot. According to an article in the November issue of the Journal of the Indian Medical Association, doctors at Grant Medical College in Mumbai have reported cases of what they are referring to as sari cancer. “We have treated three women for waist or sari cancer in the last couple of years,” says author of the article Dr G D Bakhshi, who is an associate professor of surgery at Grant. He authored the piece with colleagues Dr Ashok D Borisa and Dr Mukund B Tayade.