Chen Fang1, Wu Cai2, Yun Huang3. 1. Department of Endocrinology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China. 2. Department of Radiology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China. 3. Department of Endocrinology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China. hy0625@126.com.