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Imaging diagnosis--Vertebral canal porcupine quill with presumptive secondary arachnoid diverticulum
Journal article   Peer reviewed

Imaging diagnosis--Vertebral canal porcupine quill with presumptive secondary arachnoid diverticulum

Adam R Schneider, Annie V Chen and Russell L Tucker
Veterinary radiology & ultrasound, Vol.51(2), pp.152-154
03/2010
DOI: https://doi.org/10.1111/j.1740-8261.2009.01641.x
Handle:
https://hdl.handle.net/2376/115043
PMID: 20402400

Abstract

Arachnoid Cysts - surgery Laminectomy - veterinary Cervical Vertebrae - diagnostic imaging Foreign-Body Migration - veterinary Arachnoid Cysts - veterinary Porcupines Radiography Foreign-Body Migration - complications Animals Foreign-Body Migration - diagnosis Arachnoid Cysts - diagnosis Dog Diseases - etiology Dogs Magnetic Resonance Imaging - veterinary Arachnoid Cysts - etiology Dog Diseases - diagnosis Decompression, Surgical - veterinary Dog Diseases - surgery
A 3-year-old Gordon Setter developed cervical hyperesthesia and a stiff gait. Upon magnetic resonance (MR) imaging, an arachnoid diverticulum was detected at the C1 level. Upon surgical resection, a porcupine quill was identified within the vertebral canal in the area of the cyst. At a retrospective review of the MR images, the quill appeared as a circular well-demarcated T2-hypointense lesion. Porcupine quill migrations are common in the dog but migration into the central nervous system is rare.

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