XIAN, CHINA - NOVEMBER 20:  Doctor Guo Shuzhong checks the tumour of nineteen-year-old Chinese girl Zhang Junmei at Xian Xijing Hospital on November 20, 2007 in Xian of Shaanxi Province, China. Zhang suffers from 'Neck and Back Hamartoma', and the tumour is about 17x19x22 cubic centimeter. Doctors are planning a surgery to remove the hamartoma for her. Getty Images logo Getty Images 27 months ago

XIAN, CHINA - NOVEMBER 20: Doctor Guo Shuzhong checks the tumour of nineteen-year-old Chinese girl Zhang Junmei at Xian Xijing Hospital on November 20, 2007 in Xian of Shaanxi Province, China. Zhang suffers from 'Neck and Back Hamartoma', and the tumour is about 17x19x22 cubic centimeter. Doctors are planning a surgery to remove the hamartoma for her.