Related Experiment Video
Updated: Aug 11, 2025

Murine Fetal Echocardiography
Published on: February 15, 2013
Sonographic Assessment of Fetal Sex: More than External Genitalia
Maria-Elisabeth Smet1,2, Rachel Bethe1,3, Alexandra Papworth1
1Sydney Ultrasound for Women, Chatswood, New South Wales, Australia.
Abstract:
Early identification of fetal sex is possible due to both improved ultrasound resolution and the incorporation of cell-free DNA testing into routine prenatal screening services. While ultrasound assessment of the external genitalia generally suffices, there are instances where identification of the internal genitalia becomes vital to allow accurate prenatal diagnosis and comprehensive counseling. This manuscript outlines the methodology and clinical utility of assessing fetal genitalia beyond conventional sonography from the second trimester onward and is the first to describe direct visualization of the fetal vagina.
Related Concept Videos
Ultrasonography
During an ultrasonography procedure, a handheld device called...
Development of the Sexual Organs in the Embryo and Fetus
Near the gonadal ridges, two duct systems are present: the mesonephric ducts (Wolffian ducts) and paramesonephric ducts (Müllerian ducts). These ducts form the basis for the...
External Female Genitals
Assessment of the Abdomen III: Palpation
Assessment of the Abdomen I: Inspection and Auscultation
The abdominal examination is a cornerstone of clinical medicine, serving as a critical tool in diagnosing various gastrointestinal (GI) diseases. It involves a systematic approach that includes inspection and auscultation, each with distinct yet complementary roles in assessing the abdomen. This article will delve into these two primary methods healthcare professionals use to examine the abdomen.
Inspection of the Abdomen
The first step in any abdominal examination is inspection....
Imaging Studies II: Ultrasonography

