Objective:

To analyze the ultrasonographic features of fetal single hemivertebra deformity and explore the value of two-dimensional and three-dimensional ultrasonography in the diagnosis of fetal single hemivertebra deformity.

Methods:

Ten cases of fetal single hemivertebra deformity diagnosed by prenatal ultrasonography in Shijie Hospital of Dongguan and Chashan Hospital of Dongguan were reviewed. The ultrasonographic features were analyzed and the results of delivery or induced labor were followed up.

Results:

In 10 cases with fetal single hemivertebra deformity

there were 6 cases with deformity in thoracic hemivertebra

4 cases in lumbar hemivertebra. All 10 cases had abnormal curvature of the spine

indicating as scoliosis or kyphosis

abnormal vertebral body with reduced size and partial absence. Fetal single hemivertebra deformity had some sonographic features according to which prenatal ultrasound could make a more accurate diagnosis.

Conclusion:

Prenatal ultrasound has a good value in the diagnosis of fetal single hemivertebra deformity. Three-dimensional ultrasound could visually display the whole curvature of the spine and the morphology of vertebral body.