Triphalangeal thumb-polysyndactyly syndrome (TPT-PS) is a rare type of congenital limb deformity, and most studies focus on the genetics. Case reports of the sonographic characteristics of TPT-PS during pregnancy are rare.

中文翻译：

---

超声联合基因检测产前诊断三指趾多指综合征一例。

三指趾多指综合征（TPT-PS）是一种罕见的先天性肢体畸形，大多数研究集中在遗传学上。妊娠期间 TPT-PS 超声特征的病例报告很少见。