剑桥词典a situation in which an organ or body part is in the wrong position , either from birth or because of an injury （先天性或因受伤而）异位 Thyroid ectopia is a frequent cause of congenital hypothyroidism 甲状腺异位是引起先天性甲状腺功能低下的一个十分常见的原因。 返回 ectopia