对比分析卵巢畸胎瘤声像图特征与病理组织学特点。

对2005年1月至2013年12月首都医科大学附属复兴医院收治并经手术病理证实的35例（40个）卵巢畸胎瘤的声像图特点与术后病理组织学特征进行对比分析。

36例40个卵巢肿瘤术前超声显示囊性为主型10个（10/40，25.0%）；实性为主型5个（5/40，12.5%）；囊实混合型25个（25/40，62.5%）。病理检查结果：成熟畸胎瘤36个（36/40，90.0%），主要组织成分为油脂、毛发、皮肤及其附属物，其中1个为卵巢甲状腺肿（2.5%），主要组织成分为甲状腺组织。未成熟畸胎瘤4个（4/40，10.0%），在与成熟畸胎瘤相似的背景下，未成熟组织主要成分为原始神经管。超声与病理对比显示：未成熟畸胎瘤与部分成熟畸胎瘤声像图表现相似，为实性为主型及囊实混合型声像表现。

超声与病理对比显示，卵巢畸胎瘤内部回声与肿瘤组织结构密切相关：超声显示囊性为主型回声者多为成熟畸胎瘤，超声显示囊实混合型及实性为主型回声者既可为成熟畸胎瘤，也可为未成熟畸胎瘤。

To compare the sonographic and histopathological features of ovarian teratoma.

The sonographic and histopathological features were retrospectively analyzed and summarized in 35 cases of patients (40 cases of ovarian teratomas) with ovarian teratoma proved by surgery and pathology in Fuxing Hospital, Capital Medical University from January 2005 to December 2013.

There were three types on ultrasound: the cystic type (10/40, 25.0%), the solid type (5/40, 12.5%), and the cyst-solid type (25/40, 62.5%). The histopathological findings of the tumors were classified into two types: ovarian mature teratoma (36/40, 90.0%) and ovarian immature teratoma (4/40, 10.0%). In the ovarian mature teratoma group, the majority of the tumor were filled with oil, hair, skin and its appendages. The ovarian struma (1/40, 2.5%) could also be seen in this type, which was mainly filled with thyroid tissue.In the ovarian immature teratoma group, immature tissue mainly consisted of the primitive neural tube under the similar histopathological background with mature teratoma. In comparison of ultrasonography and pathology, the ultrasonographic features of immature teratoma and mature teratoma were similar. Both of them appeared as the solid type and the cyst-solid type.

In comparison of ultrasonography and pathology, ovarian teratoma′s internal echo and its tissue structure are closely correlated. The cystic type was usually found in mature teratoma, and the solid type and the cyst-solid type can be found in either mature teratoma or immature teratoma.