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Intramedullary neurenteric cyst without concurrent malformation.

S Nagi¹, D Ghorbel, C Drissi

¹Department of Neuroradiology, Institut National de Neurologie, Tunis, Tunisia. sonia.nagi@rns.tn

Australasian Radiology

|November 2, 2007

Summary

Isolated intramedullary neurenteric cysts (NECs) are rare spinal cord lesions. This report details a unique case of an intramedullary NEC presenting with cervical pain and weakness, confirmed via MRI and histology.

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Area of Science:

Neurology
Neurosurgery
Pathology

Background:

Neurenteric cysts (NECs) are congenital lesions typically found outside the spinal cord.
Intramedullary NECs are exceptionally rare, with fewer than 10 isolated cases previously documented.
Understanding the presentation and diagnosis of these rare lesions is crucial for effective management.

Observation:

A patient presented with cervical pain and left-sided weakness, predominantly affecting the upper limb.
Magnetic Resonance Imaging (MRI) identified a cystic lesion at the C3-C4 vertebral level within the spinal cord.
The lesion was surgically partially excised for diagnostic and therapeutic purposes.

Findings:

Histological examination confirmed the diagnosis of a neurenteric cyst.
The reported case represents an isolated intramedullary NEC, lacking any associated spinal dysraphism.
This finding contributes to the limited existing literature on intramedullary NECs.

Implications:

This case highlights the importance of considering intramedullary NECs in the differential diagnosis of spinal cord lesions, even in the absence of typical dysraphic features.
Accurate neuroradiological evaluation and subsequent histological analysis are key to diagnosing these rare entities.
Further case reports are needed to better understand the clinical spectrum and optimal treatment strategies for intramedullary NECs.