 Brain MRI:The ventricles and sulci are normal in size. The cerebellar tonsils are in normal position. There are no masses, mass effect or midline shift. The pituitary gland is normal in size. There is no evidence for intracranial hemorrhage or acute cerebral, brainstem or cerebellar infarction. No diffusion-weighted abnormalities are identified. Myelination is appropriate. There are no extraaxial fluid collections or subdural hematomas. Flow voids are present within the major vessels indicating patency. The mastoid air cells are clear. Lumbar spine MRI:Alignment is anatomic. There are no fractures or subluxations. The marrow signal is benign. The conus is normal in signal and morphology and terminates just distal to L1/2. The visualized intra-abdominal and paraspinal contents are unremarkable. There are no osseous dysplasias or stenoses. There is no fat signal within the filum. Upon prone maneuvering, the conus and cauda quinine translate anteriorly.
1.Negative noncontrast brain MRI. Specifically, there are no MRI findings to explain the patient's developmental delay.2.Negative noncontrast lumbar spine MRI. Specifically, there are no MRI findings to explain the patient's refusal to walk. There are no MRI findings of tethered cord or fatty filum.