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Prenatal diagnosis of fetal bifid great toe

Prenatal diagnosis of fetal bifid great toe Prenatal identification of hand and foot anomalies is important in view of their association with chromosomal abnormalities and genetic syndromes.1 In this report we describe the prenatal ultrasonographic diagnosis of a hallux duplication in a second-trimester detailed scan. To our knowledge, this report documents the first case of this rare form of preaxial polydactyly of the foot to be detected prenatally. CASE REPORT A 32-year-old woman, gravida 3, para 2, with an unremarkable family and obstetric history, underwent a routine detailed ultrasonographic examination at 19 weeks, menstrual age (MA). This revealed a singleton fetus with biometry consistent with dates, a fundal placenta, and normal amniotic fluid volume. Detailed examination of the fetal anatomy demonstrated that the right great toe was slightly separated from the other toes and showed duplication of its distal portion (Figure 1). No other anomalies were detected. In view of the association of chromosomal abnormalities with polydactyly1 or separation of the great toe,2 the option of amniocentesis was discussed but not accepted by the parents. After an uncomplicated antenatal course, a healthy infant boy weighing 4018 grams and with Apgar scores of 9 and 9 at 1 and 5 minutes, respectively, was delivered spontaneously at http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Clinical Ultrasound Wiley

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References (15)

Publisher
Wiley
Copyright
Copyright © 1997 John Wiley & Sons, Inc.
ISSN
0091-2751
eISSN
1097-0096
DOI
10.1002/(SICI)1097-0096(199707)25:6<336::AID-JCU9>3.0.CO;2-D
Publisher site
See Article on Publisher Site

Abstract

Prenatal identification of hand and foot anomalies is important in view of their association with chromosomal abnormalities and genetic syndromes.1 In this report we describe the prenatal ultrasonographic diagnosis of a hallux duplication in a second-trimester detailed scan. To our knowledge, this report documents the first case of this rare form of preaxial polydactyly of the foot to be detected prenatally. CASE REPORT A 32-year-old woman, gravida 3, para 2, with an unremarkable family and obstetric history, underwent a routine detailed ultrasonographic examination at 19 weeks, menstrual age (MA). This revealed a singleton fetus with biometry consistent with dates, a fundal placenta, and normal amniotic fluid volume. Detailed examination of the fetal anatomy demonstrated that the right great toe was slightly separated from the other toes and showed duplication of its distal portion (Figure 1). No other anomalies were detected. In view of the association of chromosomal abnormalities with polydactyly1 or separation of the great toe,2 the option of amniocentesis was discussed but not accepted by the parents. After an uncomplicated antenatal course, a healthy infant boy weighing 4018 grams and with Apgar scores of 9 and 9 at 1 and 5 minutes, respectively, was delivered spontaneously at

Journal

Journal of Clinical UltrasoundWiley

Published: Jul 1, 1997

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