Newborn child with swelling over the sacrum prompting MRI to evaluate for any underlying spinal dysraphism.

There are multiple closed spinal dysraphism with associated fatty masses. Lipomas with dural defects can be broadly split into lipomyeloceles and lipomyelomeningoceles. The lipoma-placode interface is within the spinal canal and this is therefore a lipomyelocele.

The placode-lipoma interface of the fatty mass lies within the spinal canal, hence this is a lipomyelocele rather than a lipomyelomeningocele.