Intradural extramedullary type of spinal hydatid disease is a rare variety of 
hydatid disease, and is even rarer in paediatric age group. Spinal hydatid 
disease should be considered in the differential diagnosis of spinal cord 
compression syndrome in endemic countries and should be evaluated with imaging 
and serological investigations. Our case was a 9- year-old boy who presented 
with lower back pain lasting for 8 months and progressive bilateral lower 
extremities weakness lasting for 2 month. Neurological examination was 
suggestive of lower motor neuron type of paraperesis. Magnetic resonance images 
of the lumbar spine showed an intradural cystic lesion displacing and 
compressing the lower cord and cauda equina. The cystic mass was explored with 
L1-L4 laminectomy and after durotomy; it was separated from cord and dura mater 
by hydrodissection. It contained a clear fluid. The pathological diagnosis was 
hydatid disease.