Gao Chuan-Fen, Zhou Pei, Zhang Chen
Department of Ultrasound, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, Anhui Province, China.
Prenatal Diagnosis Center, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, Anhui Province, China.
World J Clin Oncol. 2024 Sep 24;15(9):1245-1250. doi: 10.5306/wjco.v15.i9.1245.
Facial teratoma is a rare benign tumor that accounts for about 1.6% of all teratomas and can be diagnosed by prenatal ultrasound (US). The purpose of this report was to describe our experience with the diagnosis of fetal facial teratoma by prenatal US at second trimester to provide a reference for clinical diagnosis of fetal maxillofacial teratoma.
We present two cases of patients with abnormal fetal facial findings on US at second trimester of pregnancy in our department. Case 1 was a 31-year-old G3 P1 + 1 female, with US revealing a heterogeneous echogenicity of 32 mm × 20 mm × 31 mm on the fetal face, most of it located outside the oral cavity and filling the root of the oral cavity. Case 2 was a 29-year-old G1P0 female, with fetal head and neck US revealing a cystic-solid echo mass measuring 42 mm × 33 mm × 44 mm, the upper edge of the lesion reaching the palate and filling the oral cavity. The contours of the lesions were visualized using three-dimensional (3D) US imaging. Both patients decided to give up treatment. Biopsies of the lesions were performed after induction of labor, and diagnosed as maxillofacial teratoma.
Fetal maxillofacial teratomas can be diagnosed by US in early pregnancy, allowing parents to expedite treatment decisions.
面部畸胎瘤是一种罕见的良性肿瘤，约占所有畸胎瘤的1.6%，可通过产前超声（US）诊断。本报告的目的是描述我们在孕中期通过产前超声诊断胎儿面部畸胎瘤的经验，为胎儿颌面部畸胎瘤的临床诊断提供参考。
我们报告了两例在我院孕中期超声检查发现胎儿面部异常的病例。病例1为一名31岁、孕3产1 + 1的女性，超声显示胎儿面部有一个32 mm×20 mm×31 mm的不均匀回声团，大部分位于口腔外并充填口腔根部。病例2为一名29岁、孕1产0的女性，胎儿头颈部超声显示一个42 mm×33 mm×44 mm的囊实性回声团，病变上缘达腭部并充填口腔。通过三维（3D）超声成像可清晰显示病变轮廓。两名患者均决定放弃治疗。引产术后对病变进行活检，诊断为颌面部畸胎瘤。
孕早期可通过超声诊断胎儿颌面部畸胎瘤，有助于家长尽快做出治疗决策。
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