Split cord malformation

Case Summary ;

11 month old girl had a non progressive painless swelling with a dermal  sinus in the lower back since birth. Child had no bladder / bowel incontinence or lower limb weakness. MRI showed a split cord malformation type 1 with a fatty filum. Underwent T12 to L5 laminectomy and excision of bony spur and medial dural cuff with sectioning of fatty filum.