Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Surgically confirmed myelographic classification of congenital intraspinal lipoma in the lumbosacral region

  • 50 Accesses

  • 14 Citations


Twenty-four cases of histologically confirmed congenital intraspinal lipoma of the lumbosacral region were studied by means of myelography with metrizamide. The findings were compared with intraoperative observations. Myelography with metrizamide clearly revealed the detailed intrathecal structures and allowed a classification of intraspinal lipomas into four types, in terms of their insertion into the conus medullaris: (1) dorsal type, either with direct or indirect (via an intrathecal stalk) insertion of the extrathecal lipoma into the dorsal aspect of the conus medullaris; (2) caudal type; (3) combined type; and (4) filar lipoma. Based on our surgical experience in untethering and decompression of the lesions, the classification was found to be useful in designing a safe and effective surgical procedure which minimized all possible trauma to the intrathecal neural structures.

This is a preview of subscription content, log in to check access.


  1. 1.

    Anderson FM (1968) Occult spinal dysraphism: diagnosis and management. J Pediatr 73:163–177

  2. 2.

    Barry JF, Harwood-Nash DC, Fitz CR, Byrd DW (1977) Metrizamide in pediatric myelography. Radiology 124:409–418

  3. 3.

    Barson AJ (1969) Vertebral level of termination of spinal cord during normal and abnormal development. J Anat 106:489–497

  4. 4.

    Bassett RC (1950) The neurologic deficit associated with lipomas of the cauda equina. Ann Surg 131:109–116

  5. 5.

    Bruce DA, Schut L (1979) Spinal lipomas in infancy and childhood. Child's Brain 51:192–203

  6. 6.

    Burrows FGO (1968) Some aspects of occult spinal dysraphism: a study of 90 cases. Br J Radiol 41:496–507

  7. 7.

    Chapman PH (1982) Congential intraspinal lipomas: anatomic considerations and surgical treatment. Child's Brain 9:37–47

  8. 8.

    Dubowitz V, Lorber L, Zachary RB (1965) Lipoma of the cauda equina. Arch Dis Child 40:207–213

  9. 9.

    Emery JL, Lendon RG (1969) Lipomas of the cauda equina and other fatty tumors related to neurospinal dysraphism. Dev Med Child Neurol [Suppl] 11:62–70

  10. 10.

    Fitz CR, Harwood-Nash DC (1975) The tethered conus. AJR 125:515–523

  11. 11.

    Gold LHA, Kieffer SA, Peterson HO (1969) Lipomatous invasion of the spinal cord associated with spinal dysraphism: myelographic evaluation. AJR 107:479–485

  12. 12.

    Gryspeerdt GL (1963) Myelographic assessment of occult forms of spinal dysraphism. Acta Radiol [Diagn] (Stockh) 1:702–717

  13. 13.

    Hoffman HJ, Hendrick EB, Humphreys RP (1976) The tethered spinal cord: its protean manifestations, diagnosis and surgical correction. Child's Brain 2:145–155

  14. 14.

    Lassman LP, James CCM (1967) Lumbosacral lipomas: critical survey of 26 cases submitted to laminectomy. J Neurol Neurosurg Psychiatry 30:174–181

  15. 15.

    Naidich TP, McLone DG, Mutluer S (1983) A new understanding of dorsal dysraphism with lipoma (Lipomyeloschisis): radiologic evaluation and surgical correction. AJNR 4:103–166

  16. 16.

    Roger HM, Long DM, Chou SN, French LA (1971) Lipomas of the spinal cord and cauda equina. J Neurosurg 34:349–354

  17. 17.

    Till K (1973) Occult spinal dysraphism. The value of prophylactic surgical treatment. Excerpta Medica, Amsterdam

  18. 18.

    Villarejo FJ, Blazquez MG, Gutierrez-Diaz JA (1976) Intraspinal lipomas in children. Child's Brain 2:361–370

Download references

Author information

Correspondence to Kiyoshi Sato.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Sato, K., Shimoji, T., Sumie, H. et al. Surgically confirmed myelographic classification of congenital intraspinal lipoma in the lumbosacral region. Child's Nerv Syst 1, 3–11 (1985). https://doi.org/10.1007/BF00706723

Download citation

Key words

  • Intraspinal lipoma
  • Myelography
  • Meningocele