国际生殖健康/计划生育 ›› 2022, Vol. 41 ›› Issue (5): 389-392.doi: 10.12280/gjszjk.20220130

• 病例报告 • 上一篇    下一篇

17p13.3p13.2微缺失胎儿一例并文献复习

李燕青, 傅婉玉, 吴素霞, 江矞颖, 王元白, 庄建龙()   

  1. 362000 福建省泉州市妇幼保健院·儿童医院产前诊断中心(李燕青,傅婉玉,江矞颖,王元白,庄建龙),影像科(吴素霞)
  • 收稿日期:2022-03-11 出版日期:2022-09-15 发布日期:2022-10-12
  • 通讯作者: 庄建龙 E-mail:415913261@qq.com
  • 基金资助:
    福建省卫健委青年科研课题(2020QNB045)

A Case of 17p13.3p13.2 Microdeletion Fetus and Literature Review

LI Yan-qing, FU Wan-yu, WU Su-xia, JIANG Yu-ying, WANG Yuan-bai, ZHUANG Jian-long()   

  1. Prenatal Diagnosis Center (LI Yan-qing, FU Wan-yu, JIANG Yu-ying, WANG Yuan-bai, ZHUANG Jian-long), Department of Radiology (WU Su-xia), Quanzhou Women′s and Children′s Hospital, Quanzhou 362000, Fujian Province, China
  • Received:2022-03-11 Published:2022-09-15 Online:2022-10-12
  • Contact: ZHUANG Jian-long E-mail:415913261@qq.com

摘要:

报告1例采用染色体核型分析及单核苷酸多态性微阵列(single nucleotide polymorphism array,SNP-array)检测对产前影像学检查提示胎儿无脑回畸形、双侧脑室增宽、室间隔缺损及生长受限的患儿进行遗传病因分析情况。SNP-array检测结果显示胎儿在17号染色体17p13.3p13.2区段存在4.3 Mb片段缺失,包含Miller-Dieker综合征疾病区域,经对父母验证后提示该片段缺失为新发变异,说明联合影像学及SNP-array检测进行胎儿出生缺陷筛查与诊断具有重要意义。

关键词: 基因缺失, 多态性,限制性片段长度, 产前诊断, Miller-Dieker综合征, 17p13.3微缺失, 单核苷酸多态性微阵列

Abstract:

A case of 17p13.3p13.2 microdeletion fetus was reported, combined with literature review. This is a fetus with the anencephaly and bilateral ventricle widening, ventricular septal defect and fetal growth restriction detected by imaging examination. Traditional chromosomal karyotype and single nucleotide polymorphism array (SNP-array) analysis were employed for the genetic etiology analysis. The SNP-array detection demonstrated a 4.3 Mb deletion in 17p13.3p13.2 region of chromosome 17 in the fetus, which covering the Miller-Dieker syndrome disease region. Parental SNP-array verificated that this microdeletion was a de novo variant. It is of great significance combining use of imaging and SNP-array technology to screen and diagnose fetal birth defects.

Key words: Gene deletion, Polymorphism, restriction fragment length, Prenatal diagnosis, Miller-Dieker syndrome, 17p13.3 microdeletion, Single nucleotide polymorphism array