MRI of the lumbar spine revealed an extensive longitudinal, intradural, centrally located solid expansile mass at the lumbosacral spine. The tumor extends from the tip of conus medullaris at the L1 level, along the cauda equina/filum terminale, to the S1 level. This mass has circumscribed margins, and it is iso-intensity in T1-weighted image and T2WI slightly high signal intensity compared with the spinal cord, with intense contrast enhancement. The tumor measures 1,4 x 1,7 x 15 cm.