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SMA Syndrome
Joseph Junewick, MD FACR
over 5 years ago
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Traumatic Pseudomeningocele

Case Detail

Anatomy: Brain-Spine
Junewick
Joseph Junewick, MD FACR
Diagnostic Category: Trauma
Created: over 6 years ago
Updated: over 6 years ago
Tags: PEDS
Modality/Study Types: MR CT
Activities:
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History

Teenager involved in motor vehicle accident now complaining of right upper extremity paresthesia and weakness.


Case Images


Diagnosis

Traumatic Pseudomeningocele

Findings

CT – Right T1 transverse process fracture.

MR – Axial T2 image shows a pseudomeningocele dissecting into the soft tissues of the right shoulder.

Discussion

Transverse process fractures are mechanistically the result of lateral flexion. Lateral flexion gives rise to simultaneous distraction and impaction ipsilateral and contralateral respectively to the applied force. Impaction is associated with fracture and/or soft tissue injury and distraction is associated with soft tissue injury (often neuropraxia from nerve stretching or pseudomeningocele). The presence of a pseudomeningocele indicates nerve root avulsion.

Reference

Khosla A, Wippold FJ. CT Myelography and MR Imaging of Extramedullary Cysts of the Spinal Canal in Adult and Pediatric Patients. AJR 2002; 178:201-207



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