Second trimester diagnosis of diastematomyelia: US, CT and MRI features (original) (raw)
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Prenatal diagnosis of diastematomyelia: A case report and review of the literature
Journal of Clinical Ultrasound, 2012
Diastematomyelia is a rare congenital disorder in which the spinal cord is divided longitudinally for part of its length. It can be accurately identified in the prenatal period by detailed sonographic examination of the spine. We report a case of diastematomyelia localized to spinal levels T6-T9 diagnosed prenatally at 31 weeks gestation and review the existing literature on the diagnosis and management of this condition during pregnancy.
Diastematomyelia: pre- and postnatal multimodal diagnostic approach
Journal of the Belgian Society of Radiology, 2011
Diastematomyelia is a relatively rare congenital abnormality presenting as a sagittal separation of the spinal cord. Although cases of diastematomyelia have been previously reported, fully documented approaches by both prenatal and postnatal diagnostic workup are rare in the literature. We present a fully studied case of diastematomyelia type I investigated by prenatal US and MRI and postnatal US, MRI and radiography.
Prenatal Diagnosis of Diastematomyelia: Case Reports and Review of the Literature
Prenatal Diagnosis, 1997
Diastematomyelia is a rare malformation characterized by complete or incomplete division of the spinal cord by osseous or fibrocartilaginous septum. Most cases are seen in association with other anomalies of the vertebral column such as spina bifida, kyphoscoliosis, butterfly vertebra, and hemivertebra. In this report we describe two cases of isolated diastematomyelia detected at routine second-trimester detailed ultrasound scan, the most striking feature being the detection of an echogenic focus in the posterior aspect of the spine in association with widening of the interpedicular vertebral space. The prenatal literature is reviewed to assess the clinical significance of this finding. 1997 by John Wiley & Sons, Ltd.
Fetal Diastematomyelia: Rare Case
IOSR Journal of Dental and Medical Sciences, 2012
A ten-month-old infant with Diastematomyelia, as a very rare variety of spinal dysraphism is presented in this article Routine USG in a 36 weeks pregnant woman revealed a spinal abnormality of the fetus in thoracolumbar [D12-L1] regions. At birth, examination of the newborn showed a small midline swelling and bluish discoloration of skin and scoliosis in the lumbar region. There was associated umbilical hernia.no neurological deficit was noted. Postnatally 8 month plane radiograph showed multiple deformed dorsal vertebrae and mild scoliosis.MR imaging revealed diastematomyelia was seen at thoracolumbar [D12-L1] regions. It was type I with a bony spur measuring 1.0 X0.5 cm the two hemicords were asymmetrical. There was no cord tethering. The conus ended at the L4 level.. There was associated thoracolumbar spina bifida measuring 1.6 cm with a small meningocele measuring 2.5 X 0.6 cm. multilevel syringohydromelia and multiple deformed dorsal vertebrae and mild scoliosis of dorsal spine was seen. Thus what makes this case different is inspite of having so many microanatomical defects, there is no neurologic deficit. So its advisible to do corrective surgery to avoid further complicatiions-thethered cord syndrome before the baby starts to take steps.
Prenatal diagnosis of diastematomyelia: presentation of eight cases and review of the literature
Ultrasound in Obstetrics and Gynecology, 2007
Objectives Diastematomyelia is a rare form of spinal dysraphism. We present eight cases of diastematomyelia diagnosed prenatally in our institution as well as a review of the literature in order to determine the prognosis of isolated cases of this very unusual condition. Methods Records of fetuses with diastematomyelia diagnosed in our institution between January 2000 and June 2005 were collected. All liveborn fetuses were examined by a pediatric neurologist. Pre-and postnatal data were analyzed. A search was then conducted using PubMed to review previously reported cases in the literature. Results Eight cases of diastematomyelia were diagnosed during the study interval. The mean (range) gestational age at diagnosis was 21 (13-25) weeks. The main sonographic findings were widening of the spinal canal in the coronal view and an additional echogenic focus in the posterior part of the spinal column in the axial view. The diagnosis of associated open spina bifida was made in one fetus with elevated levels of amniotic fluid α-fetoprotein (AF-AFP) and acetylcholinesterase (AF-AChE) and the pregnancy was terminated. The other seven cases of diastematomyelia had normal levels of AF-AFP and AF-AChE and were considered isolated. One pregnancy miscarried spontaneously 1 week following amniocentesis and the remaining six were delivered at term. Review of the literature revealed 14 reports involving 26 cases of prenatally diagnosed diastematomyelia. Twelve cases had normal biochemistry and/or no additional abnormalities and all had a favorable outcome. Conclusions When diastematomyelia is not associated with other spinal anomalies, the prognosis is favorable. Prenatal diagnosis is generally made in the second trimester but sonographic signs may be recognized as early as the first trimester. Intrauterine diagnosis of diastematomyelia should facilitate appropriate management of affected cases.
Fetal diastematomyelia: MR imaging: A case report
Indian Journal of Radiology and Imaging, 2009
MRI is increasingly being used in the diagnosis of fetal anomalies suspected on USG. The USG evaluation of fetal spinal anomalies is limited by acoustic shadowing, fetal position and the amount of liquor. Fetal MRI is able to show spinal anomalies well, as in our case of fetal diastematomyelia with a dorsal dermal sinus, suspected on USG at 28 weeks gestation.
2009
Address for Correspondence / Yazışma Adresi: Uzm. Dr. Oluş Api, Acelya Sok. No: 12/2 34865 Dragos, Kartal, Istanbul, Turkey Phone: +90 532 434 15 82 e.mail: olusapi@gmail.com Objective: To present clinical and ultrasonographic features of two fetal diastematomyelia cases diagnosed prenatally. Cases: The first presented case was a 19 years old, gravida 1, para 0 woman and was admitted to our perinatology clinic at 21 weeks of gestation. She was referred with a prediagnosis of spina bifida at the level of the fifth lumbar vertebra. A widening of the spinal canal, echogenic bony spur traversing the spinal canal, intact skin and soft tissues overlying the affected spinal segment were detected upon detailed ultrasonographic examination. There were no associated spinal anomalies and maternal serum alphafetoprotein level was within normal ranges. The patient was counseled about the malformation and its favourable prognosis. The baby girl was delivered at 38 weeks of gestation and she under...
MRI diagnosis of diastematomyelia in a 78-year-old woman: Case report and literature review
Polish journal of radiology / Polish Medical Society of Radiology, 2010
Diastematomyelia is a rare congenital malformation of the spinal cord, which belongs to the group of occult spinal dysraphisms. This disorder consists in the separation of the spinal cord into two parts in the sagittal plane (hemicords). Diastematomyelia may coexist with other spinal dysraphisms, such as myelomeningocele, meningocele, spinal lipoma, neuroenteric cysts or dermal sinuses and vertebral abnormalities, such as hemivertebrae, butterfly vertebrae or scoliosis. We reported a case of a woman with a congenital defect of the spinal cord, in the form of diastematomyelia, which was diagnosed at the age of 78. The patient had been complaining of back pain for many years. The X-ray radiograms showed the fusion of vertebra L3-L4, defective fusion of posterior spinal bony elements L5-S1. Moreover, abnormal hair growth (hypertrichosis) in the lumbar region was found. The separation of the spinal cord was only diagnosed in MR imaging which was performed at the age of 78. Diastematomye...