Prenatal diagnosis of split cord malformation by ultrasound and fetal magnetic resonance imaging: case report and review of the literature
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INTRODUCTION: Split cord malformation (SCM) is rare congenital disorder of spine in which bony, fibrous, or cartilaginous septum subdivides partially or completely the vertebral canal. SCM can be associated with other spinal abnormalities such as spina bifida, Arnold-Chiari malformation, hemivertebra, butterfly vertebra, or kyphoscoliosis and also can be seen as part of Jarcho-Levin syndrome. Prenatal diagnosis of SCM is possible by ultrasonography (US). Fetal magnetic resonance imaging (MRI) and amniotic fluid acetylcholine esterase (AF-AChE) levels can be helpful to rule out additional anomalies. We present a case of fetal SCM diagnosed by US and fetal MRI. CASE: An 18-year-old woman with no obstetrics risk factor was referred for routine US screening. At sagittal section, fetal spine was seen to be disordered. A coronal view of the spinal canal showed evidence of widening at the lower thoracic and lumbar level. An echogenic mass was identified within the enlarged spinal canal at level of T6-L5. Fetal MRI and AF-AChE analysis confirmed diagnosis and ruled out other anomalies and spina bifida. Neurological examination of the baby at 16 months of age was normal.
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