Clinical question: 17-year-old with Chiari malformation. Signs and symptoms: Headache. Nonenhanced thoracic MRI:Examination demonstrate normal anatomical development, signal intensity and alignment of the vertebral column.There is also normal signal intensity and caliber of thoracic cord and in particular without evidence of syrinx.There is normal termination of the cord at the lower L1 level.There is no evidence of spinal canal compromise or neural foraminal stenosis at any level.There is no detectable. Spinal soft tissue abnormalities.Nonenhanced lumbar MRI:There is normal anatomical development, signal intensity and alignment of the lumbosacral spine. No evidence of spinal canal or neural foraminal compromise at any level.There is a punctate size fatty signal intensity of the filum terminale in an interrupted fashion and extending from approximately lower L3 level inferiorly. The signal intensity and overall anatomical morphology of the cauda equina is otherwise unremarkable.Prone sagittal T2 sequence is degraded due to motion artifact and is nondiagnostic, recommend repeat prone sagittal sequence.
1.Unremarkable nonenhanced thoracic MRI.2.Nonenhanced MRI of lumbar spine demonstrate normal anatomical development and alignment of vertebral column. There is normal termination of the cord at the lower L1 level. There is a tiny noncontiguous fatty signal intensity of the filum terminale extending from L3 inferiorly and unremarkable cauda equina are otherwise. The prone sagittal T2-weighted images are nondiagnostic due to extensive motion artifact and recommend repeat of the sequence. 