Eight-year-old child presented with congenital scoliosis. a Ultrasound showed no apparent findings due to bone closure. b Coronal T1WI showed two cords with bony septum seperation at L1 level (white arrow), and abnormal vertebral morphology (hemivertebrae, curved arrow). c Axial T2WI showed two cords within one dural sac which are seperated by bony septum at L1 level (type I diastomatomyelia). d Complementary axial images of plain CT (done exceptionally) showed bony spur at L1 level. Final diagnosis is diastomatomyelia (type I). No agreement between USG and MRI findings.