甲状腺囊性畸胎瘤２例徐兴华，张瑞宗河北省秦皇岛市第二医院（昌黎县０６６６００）畸胎瘤起源于原始胚胎细胞，在其发生部位由异位的多种组织构成，为真性肿瘤，多见于躯体中线及其两旁。１９７８～１９９２年间，我院收治２例甲状腺良性畸胎瘤，切除后随访３年均未复发... Thyroid cystic teratoma in 2 cases Xu Xinghua, Zhang Ruizong, Second Hospital of Qinhuangdao City, Hebei Province, Changli County 066600, China Teratoma originated from primitive embryonic cells. It is composed of ectopic multiple tissues at its site of occurrence. It is a true tumor. Seen on the midline of the body and its sides. Between 1978 and 1992, 2 cases of thyroid benign teratoma were treated in our hospital. No recurrence was found after 3 years of follow-up.