美丽筒线虫为虫媒动物源寄生虫 ,主要寄生于牛、羊等哺乳动物的口腔、咽喉与食管粘膜下组织 ,寄生于人体较少见。我们于 1999年 1月收治 1例患者 ,女性 ,33岁 ,蒙古族 ,河北省承德市隆化县人。 1年前 ,患者感觉口腔粘膜内、下口唇、牙龈及舌腹部有异物移动 ,伴痒感 ,未治疗 ,间 The worm-worm is a parasite of insect-borne animal origin, which is mainly parasitized in the mouth, throat and esophageal mucosa of mammals such as cattle, sheep and the like, and parasites are rare in the human body. In January 1999, we admitted 1 patient, female, 33 years old, Mongolian, Longhua County, Chengde City, Hebei Province. A year ago, the patient felt there was foreign body movement in the oral mucosa, lower lip, gum and tongue and abdomen, with itching, untreated, between