Intraaxial Spinal Cord Hemorrhage Secondary to Atlantoaxial Subluxation in a Dog

2010 ◽  
Vol 46 (2) ◽  
pp. 132-137 ◽  
Author(s):  
Marc Kent ◽  
Joseph S. Eagleson ◽  
Dharshan Neravanda ◽  
Scott J. Schatzberg ◽  
Fredrik I. Gruenenfelder ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Neck Pain ◽  
Vertebral Column ◽  
Acute Onset ◽  
Spinal Cord Lesion ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Cord Lesion

A 1-year-old, 3.5-kg, spayed female, toy poodle was presented for acute-onset tetraplegia and neck pain. Neuroanatomical diagnosis was consistent with a first through fifth cervical (C1 through C5) spinal cord lesion. Radiographs of the cervical vertebral column revealed atlantoaxial (AA) subluxation. Magnetic resonance imaging revealed abnormalities consistent with intraaxial spinal cord hemorrhage at the level of the AA articulation. The dog was treated with external coaptation. After 8 days, the dog regained voluntary motor function in all four limbs. Surgical stabilization was pursued. Postoperatively, the dog regained the ability to ambulate. This report details the imaging findings and management of a dog with intraaxial spinal cord hemorrhage secondary to AA subluxation.

Intramedullary Epidermoid Cyst in the Thoracic Spine of a Dog

2011 ◽  
Vol 47 (6) ◽  
pp. e145-e149 ◽  
Author(s):  
Lisa Lipitz ◽  
Helena Rylander ◽  
Marie E. Pinkerton
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Epidermoid Cyst ◽  
Cystic Mass ◽  
Spinal Cord Lesion ◽  
Magnetic Resonance Imaging Examination ◽  
Resonance Imaging ◽  
Intramedullary Spinal Cord ◽  
Cord Lesion

A 5 yr old female spayed mastiff was evaluated for a 3–4 mo history of paraparesis and 3 days of acutely worse paraparesis and incontinence. On magnetic resonance imaging, a spinal cord lesion was present at the ninth thoracic vertebra. The lesion was hyperintense on T2-weighted images (T2-W), and a hyperintense rim was present on T1-weighted postcontrast images. Histologic examination showed a cystic mass lined by squamous epithelial cells. Histopathologic diagnosis was an intramedullary epidermoid spinal cyst. Epidermoid cyst should be a differential diagnosis in young dogs with a myelopathy and an intramedullary spinal cord lesion on magnetic resonance imaging examination.

Clinical Manifestations and Spinal Cord Magnetic Resonance Imaging Findings in Chinese Neuromyelitis Optica Patients

2013 ◽  
Vol 71 (1-2) ◽  
pp. 35-41 ◽  
Author(s):  
Aiyu Lin ◽  
Jiting Zhu ◽  
Xiaoping Yao ◽  
Shifang Lin ◽  
Shenxing Murong ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Neuromyelitis Optica ◽  
Clinical Manifestations ◽  
Imaging Findings ◽  
Resonance Imaging

Syringohydromyelia in Cavalier King Charles spaniels

2000 ◽  
Vol 36 (1) ◽  
pp. 34-41 ◽  
Author(s):  
C Rusbridge ◽  
JE MacSweeny ◽  
JV Davies ◽  
K Chandler ◽  
SN Fitzmaurice ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Clinical Signs ◽  
Foramen Magnum ◽  
Spinal Cord Lesion ◽  
Resonance Imaging ◽  
Thoracic Limb ◽  
Shoulder Region ◽  
Inflammatory Drugs ◽  
Cord Lesion

Syringohydromyelia secondary to foramen magnum overcrowding is described in seven Cavalier King Charles spaniels. Clinical signs were consistent with a central spinal cord lesion. The most common signs were persistent scratching at the shoulder region with apparent neck, thoracic limb, or ear pain and thoracic limb lower motor neuron deficits. The diagnosis was made by magnetic resonance imaging. The syringohydromyelia is postulated to be a consequence of an occipital bone malformation resulting in a small caudal fossa and cerebellar herniation. Clinical signs improved but did not completely resolve when the dogs received treatment with corticosteroids or nonsteroidal anti-inflammatory drugs.

scholarly journals Clinical and magnetic resonance imaging findings in 92 cats with clinical signs of spinal cord disease

2009 ◽  
Vol 11 (2) ◽  
pp. 53-59 ◽  
Author(s):  
Rita Gonçalves ◽  
Simon R. Platt ◽  
Francisco J. Llabrés-Díaz ◽  
Katherine H. Rogers ◽  
Alberta de Stefani ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Clinical Signs ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Spinal Cord Disease

Magnetic resonance imaging findings of a case of an intradural-extramedullary tuberculoma of the spinal cord

2009 ◽  
Vol 69 (2) ◽  
pp. e49-e52 ◽  
Author(s):  
Francesc Calaf ◽  
Laura Oleaga ◽  
Nathalie Sigritz ◽  
Mattia Squarcia ◽  
Sofía González ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Intradural Extramedullary

Magnetic resonance imaging findings in ossification of the posterior longitudinal ligament of the cervical spine

1998 ◽  
Vol 88 (2) ◽  
pp. 247-254 ◽  
Author(s):  
Izumi Koyanagi ◽  
Yoshinobu Iwasaki ◽  
Kazutoshi Hida ◽  
Hiroyuki Imamura ◽  
Hiroshi Abe
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Mr Imaging ◽  
Posterior Longitudinal Ligament ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Disc Protrusion ◽  
Content Type ◽  
Fine Print

Object. Because of the lack of magnetic resonance (MR) signal from cortical bones, MR imaging is inadequate for diagnosing ossified lesions in the spinal canal. However, MR imaging provides important information on spinal cord morphology and associated soft-tissue abnormality. The purpose of this study is to determine the role of MR imaging in the diagnosis and treatment of patients with ossification of the posterior longitudinal ligament (OPLL) of the cervical spine. Methods. The authors reviewed MR imaging findings in 42 patients with cervical OPLL who were examined with a superconducting MR imaging system. The types of OPLL reviewed included eight cases of continuous, 21 cases of segmental, and 13 cases of the mixed type. All patients were treated surgically either by anterior (26 cases) or posterior decompression (16 cases). Conclusions. The T1-weighted images clearly demonstrated the spinal cord deformity caused by OPLL. Associated disc protrusion was found to be present at the maximum compression level in 60% of the patients in this series. The highest incidence of disc protrusion (81%) was found in patients with segmental OPLL. Intramedullary hyperintensity on T2*-weighted imaging was noted in 18 patients (43%). The neurological deficits observed in these 18 patients were significantly more severe than those observed in the other 24 patients. Postoperative MR imaging revealed improvement in the spinal cord deformity, although the intramedullary hyperintensity was still observed in most cases. The present study demonstrates the importance of associated disc protrusion in the development of myelopathy in patients with cervical OPLL. Magnetic resonance imaging findings may be used to help determine the actual levels of spinal cord compression and to suggest the method of surgical treatment.

Spinal intramedullary cavernoma: clinical presentation and surgical outcome

2000 ◽  
Vol 93 (1) ◽  
pp. 65-70 ◽  
Author(s):  
Harel Deutsch ◽  
George I. Jallo ◽  
Alina Faktorovich ◽  
Fred Epstein
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Signs And Symptoms ◽  
Acute Onset ◽  
Surgical Removal ◽  
Resonance Imaging ◽  
Content Type ◽  
Posterior Laminectomy ◽  
Fine Print

Object. Improved neuroimaging techniques have led to an increase in the reported cases of intramedullary cavernomas. The purpose of this study was to define the spectrum of presenting signs and symptoms in patients with spinal intramedullary cavernomas and to analyze the role of surgery as a treatment for these lesions. Methods. The authors reviewed the charts of 16 patients who underwent surgery for spinal intramedullary cavernomas. All patients underwent preoperative magnetic resonance imaging studies. Cavernomas represented 14 (5.0%) of 280 intramedullary lesions found in adults and two (1.1%) of 181 intramedullary lesions found in pediatric cases. A posterior laminectomy and surgical resection of the malformation were performed in all 16 patients. Conclusions. Magnetic resonance imaging is virtually diagnostic for spinal cavernoma lesions. Patients with spinal intramedullary cavernomas presented with either an acute onset of neurological compromise or a slowly progressive neurological decline. Acute neurological decline occurs secondary to hemorrhage within the spinal cord. Chronic progressive myelopathy occurs due to microhemorrhages and the resulting gliotic reaction to hemorrhagic products. There is no evidence that cavernomas increase in size. The rate of rebleeding is unknown, but spinal cavernomas appear to be clinically more aggressive than cranial cavernomas, probably because the spinal cord is less tolerant of mass lesions. Complete surgical removal of the cavernoma was possible in 15 of 16 of the authors' cases.

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