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Necrotizing enterocolitis
Joseph Junewick, MD FACR
over 11 years ago
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Arachnoiditis Ossificans

Case Detail

Anatomy: Brain-Spine
Joseph Junewick, MD FACR
Diagnostic Category: Infectious-Inflammatory
Created: over 11 years ago
Updated: over 9 years ago
Tags: PEDS
Modality/Study Types: CT
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Patient with cerebral palsy and spinal stabilization 6 months prior, now with back pain.

Case Images


Arachnoiditis ossificans


CT – Ossified dural plaques in nerve root sleeves and caudal recess of the thecal sac.


Arachnoiditis ossificans is a rare chronic inflammatory process affecting the thoracic and lumbar regions which may be asymptomatic or may cause pain, radicular signs, sensory disturbance or incontinence. The pathogenesis is unknown but is thought to be the result of end-stage adhesive arachnoiditis related to prior surgery, trauma, subarachnoid hemorrhage, or previous lumbar taps/injections.


Frizzell B, et al. Arachnoiditis Ossification: MR Imaging Features in Five Patients. AJR 2001; 177:461-464.

Chan CC, et al. Arachnoiditis Ossificans. Hong Kong Med J 2009; 15(2):146-148.

Faure A, et al. Arachnoiditis Ossificans of the Cauda Equina: Case Report and Review of the Literature. J Neurosurg 2002; 97:239-243.

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