Presentation
Sciatica, lower limb weakness.
Patient Data
Age: 10 years
Gender: Male
From the case:
Type II split cord malformation
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Conus medullaris terminates at L5 level (low position), likely attached to the posterior wall of the spinal canal.
Split cord at L1-L2 levels.
No discreet bony spur is seen in the spinal canal in the MRI images.
Ankylosis of the spinal processes of L2-L3, accompanied by intervertebral disc thinning at this level. Consider CT scan.
Cystic structures in the sacral canal (S2-S4 levels), abutting and scalloping the sacral vertebrae - most probably Tarlov cysts.
Case Discussion
The features represent split cord malformation; more precisely, diastematomyelia type II.