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spinal dysraphism with defective posterior elements of the dorsal and lumbosacral spine
a large multi-septated sac is seen continuous with the bony spinal canal, it measures about 6 X 3 X 1.5 cm and deformity low T2 and high T2 signal
a relatively large cord syrinx is seen within the dorsal cord and blinding within the dorso-lumbar sac (myelomeningocele)
neurogenic bladder with marked dilatation and bilateral hydroureteronephrosis
marked bilateral supratentorial hydrocephalic changes
dysplastic posterior fossa with crowding of its contents