The authors describe a case of split notochord syndrome with a neuroenteric fistula in a newborn presenting with meningitis. Associated anomalies included agenesis of the corpus callosum, short colon, malrotation, epispadias, and an abnormally high bifurcation of the abdominal aorta and inferior vena cava. The embryological mechanisms and etiologic theories are discussed in short. D 2006 Elsevier Inc. All rights reserved.Split notochord syndrome (SNS) describes congenital spinal anomalies, associated with anomalies of the vertebrae, central nervous system, and gastrointestinal tract. The anomalies arise from a persistent connection between endoderm and dorsal ectoderm. Depending on its size, site, and point in time, abnormal splitting of the notochord can result in a wide variety of malformations and clinical symptomatology.
Case reportA 4-day-old boy was referred to our hospital on suspicion of meningitis with secondary dehydration and for evaluation of vertebral anomalies. He was born at 37 weeks of gestation through normal vaginal delivery as the third child of a 26-year-old mother. Birth weight was 3010 g. Physical examination revealed normal tonus, minor facial dysmorphic signs (eg, broad mouth and dysmorphic, normally placed ears with a thin helix), left-sided congenital hip dysplasia, sacral dimple, and rocker bottom feet. The penis showed a mild epispadias, whereas anus, scrotum, and testes were normal. The mother had smoked during pregnancy and had not used supplementary folic acid. Besides local treatment of a vaginal yeast infection, no other medication had been used during pregnancy. The day before, the patient had been brought in at the referring hospital with a 2-day history of poor feeding and fever. He was jaundiced and showed a tachycardia at a body temperature of 398C. Neurologic examination revealed high tonus and a bulging anterior fontanel. The abdomen was distended. Abdominal x-ray showed a spinal cleft of the vertebrae of Th 12 and L1 (Fig. 1). The kidneys were normal on ultrasound. Blood tests showed elevated C-reactive protein (109 mg/L) and white blood cell count (25,500 cells per cubic millimeter). No lumbar puncture was attempted because of the vertebral anomalies. Blood cultures showed growth of Escherichia coli bacteria, after which, antibiotic treatment was switched from amoxicillin/ cefotaxim to meropenem.