Case report: Surgical treatment and long-term successful outcome of a spinal intramedullary vascular malformation in a dog

Frontiers in Veterinary Science

Veterinary Science

Guy C. M. Grinwis¹  Marta Plonek²  Koen M. Santifort³  Simon Platt⁴  Ines Carrera⁴ 

[1] Department of Biomedical Health Sciences, Faculty of Veterinary Medicine, Veterinary Pathology Diagnostic Centre, Utrecht University, Utrecht, Netherlands;Neurology, IVC Evidensia Small Animal Referral Hospital Arnhem, Arnhem, Netherlands;Neurology, IVC Evidensia Small Animal Referral Hospital Arnhem, Arnhem, Netherlands;Neurology, IVC Evidensia Small Animal Referral Hospital Hart van Brabant, Waalwijk, Netherlands;Vet Oracle Teleradiology, Norfolk, United Kingdom;

关键词: hemorrhage;    vascular malformation;    intramedullary;    hamartoma;    spinal cord;    outcome;    prognosis;   

DOI  :  10.3389/fvets.2023.1243882

 received in 2023-06-21, accepted in 2023-08-02,  发布年份 2023

来源: Frontiers

【 摘 要 】

A 3.5-year-old male intact Staffordshire terrier crossbreed dog was presented with a one-week history of progressive paraparesis with fecal and urinary incontinence. Neurological examination was consistent with a T3-L3 myelopathy. A magnetic resonance imaging study revealed the presence of a well-circumscribed hemorrhagic space-occupying lesion at the level of T12, suspected to be a vascular malformation, such as cavernoma or arteriovenous fistula, primary hematoma or hamartoma; less likely considerations included hemorrhagic inflammation or hemorrhagic primary or secondary neoplasia. A dorsal laminectomy, durotomy, and midline dorsal myelotomy were performed with a surgical microscope, and the vascular lesion was identified and removed. Histological examination of surgical samples yielded fibrin, hemorrhage, hematoidin pigment, and some neural tissue. Although a lining wall was visualized during surgery consistent with a vascular malformation, there was no histological confirmation of such a structure, hampering definitive classification of the lesion. There was no gross or histopathological evidence that would support a diagnosis of a hamartoma or benign neoplasia. The dog was paraplegic with intact nociception the day following surgery. Ambulation was recovered within 2 weeks. Progressive and complete recovery of neurological function was seen over the next 12 weeks. No recurrence of neurological dysfunction was seen over a 12-month follow-up period. Surgical treatment should be considered in dogs with spinal intramedullary vascular lesions which can have a successful long-term outcome.

【 授权许可】

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Copyright © 2023 Santifort, Plonek, Grinwis, Carrera and Platt.