Fig. 1.

a MR sagittal T1 W with gadolinium of the thoraco-lumber spine of showing an enhancing intramedullary a septated cystic cavity with minimal enhancement extends from the low inserted spinal cord to T11. The dermal sinus tract is demonstrated clearly connecting the skin to the spinal cord. b Intraoperative photo of the dermal tract as it is attached to the thecal sac. (2 small arrows is the dermal sinus; long arrow is the direction of head). c Postoperative sagittal MRI scan of the lumber spine showed a total resolution of the abscess; the spinal cord is still low inserted