Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2022 Feb 4;22:100. doi: 10.1186/s12884-022-04430-7

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2022

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

PMC Copyright notice

Fig. 1 — A A healthy control fetus of the same gestational age, the axial view image shows the normal alveolar, representing by round hypoechoic tooth germs that are arranged in an arch-like fashion in the alveolar bone. (arrow); B The fetus in our case, the axial view image of the maxilla shows the alveolar as a short, thin and flat hyperechoic without tooth germs (arrow); C A healthy control fetus of the same gestational age, the sagittal view image of the profile shows the normal maxilla and mandible (arrow); D The fetus in our case, the sagittal view image of the profile shows the short and retrograde maxilla and mandible (arrow)