Prenatal diagnosis of partial lumbar asoma by two- and three-dimensional ultrasound and computed tomography: embryological aspects and perinatal management
Article first published online: 22 AUG 2008
Copyright © 2008 ISUOG. Published by John Wiley & Sons, Ltd.
Ultrasound in Obstetrics & Gynecology
Volume 32, Issue 4, pages 579–581, September 2008
How to Cite
Huissoud, C., Bisch, C., Charrin, K., Rudigoz, R.-C. and Guibaud, L. (2008), Prenatal diagnosis of partial lumbar asoma by two- and three-dimensional ultrasound and computed tomography: embryological aspects and perinatal management. Ultrasound Obstet Gynecol, 32: 579–581. doi: 10.1002/uog.6136
- Issue published online: 22 AUG 2008
- Article first published online: 22 AUG 2008
- Manuscript Accepted: 13 FEB 2008
- computed tomography;
Asoma is an unusual type of hemivertebra distinct from lateral hemivertebra in its underlying mechanisms, its rarity, its often isolated nature and the high risk of it causing medullary compression. We report a case of isolated partial agenesis of a vertebral body (asoma) diagnosed at 23 weeks' gestation by ultrasonography, in a fetus showing hyperkyphosis with vertebral canal disruption. The diagnosis was established using ultrasound and computed tomography, which allowed measurement of the angle of kyphosis and helped in the determination of the postnatal orthopedic prognosis. In our patient, prenatal diagnosis of asoma facilitated optimization of postnatal management and reduced the neonate's risk of developing paralysis. The main anatomical parameters in the determination of the orthopedic risk are the level of the anomaly, the angle of kyphosis and the degree of vertebral canal disruption. Copyright © 2008 ISUOG. Published by John Wiley & Sons, Ltd.