孕妇23岁，孕1产0。单胎妊娠34周行高危超声会诊发现胎儿舌体下部见一囊实性肿块，内部见多个分隔，肿块随着舌的吞咽运动而同步运动，与舌体分界不清，周边见条索状彩色血流，舌尖位于口腔外，考虑舌血管瘤或者淋巴管瘤。妊娠36周MRI示胎儿舌体下部见T2WI高信号肿块，考虑舌血管瘤或者畸胎瘤。新生儿出生后3天转至复旦大学附属儿科医院进行囊液抽取及硬化剂注射术，术后证实为舌淋巴管瘤。本文重点介绍胎儿舌淋巴管瘤的影像学表现和新生儿治疗，以提高临床医师对舌淋巴管瘤的认识。

A 23-year-old pregnant woman， gravida 1， para 0. Single fetus at 34 weeks of gestation，a high-risk ultrasound consultation revealed a cystic-solid mass was found in the lower part of the tongue body， multiple segregations were seen inside， and the mass moved in synchronization with the swallowing movement of the fetal tongue， and was poorly demarcated from the body of the tongue， streaks of colorful blood were seen around the periphery， and the tip of the tongue was located outside of the oral cavity， which was considered to be hemangioma or lymphangioma of the tongue. MRI at 36 weeks of gestation showed a T2WI high-signal mass in the lower part of the fetal tongue， which was considered to be hemangioma or teratoma. The neonate was referred to the Children’s Hospital， Fudan University 3 days after birth for cystic fluid extraction and sclerotherapy， which confirmed a lingual lymphangioma. This article focuses on the imaging manifestations and neonatal treatment of fetal tongue lymphangiomas in order to increase clinicians’ understanding of lingual lymphangiomas.