Lipomyelocele

Discussion:

Lipomyelocele (LMC) is one of the commonest closed spinal dysraphism presenting as subcutaneous mass. It is seen in thoracolumbar region and usually presents as fatty subcutaneous mass. It is twice as common as lipomyelomeningocele (LMMC) as against open spinal dysraphism wherein myelomeningocele is more common than myelocele. 

As the spinal canal grows, there is distortion of nerve roots with growth; thereby leading to neurological deficits highlighting the importance of early diagnosis.

Posterior spinal defect noted which is covered with skin and shows interspersed lipomatous tissue.

The neural placode-lipoma interface lies within the spinal canal or at its edge with normal anterior subarachnoid space.

There is usually associated tethered low lying cord or syrinx of terminal spinal cord.

Spinal dysraphisms are associated with congenital renal anomalies.

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