Long-term outcome of a surgically resected intracranial vascular hamartoma in a dog

A 13-year-old, 6.25-kg (13.8-lb) female mongrel was referred to the authors’ hospital with an acute-onset left pleurothotonus and intermittent opisthotonus. Neurological examination showed clinical signs consistent with a multifocal brain lesion, and neoplastic, vascular, inflammatory and infectious...

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Published in:Veterinary record case reports 2020-06, Vol.8 (2), p.n/a
Main Authors: Vicens Zanoguera, Lucia, Pumarola, Marti, Ruhi, Paula, Fernandez Rodriguez, Pablo, Luján Feliu-Pascual, Alejandro
Format: Article
Language:English
Subjects:
Case reports
cerebral hamartoma
Convulsions & seizures
craniotomy
Edema
Endothelium
geriatric dog
Histopathology
Hypertension
Intracranial pressure
Medical imaging
Metastasis
Posture
Sarcoma
surgical resection
vascular neoplasia
Vein & artery diseases
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Summary:A 13-year-old, 6.25-kg (13.8-lb) female mongrel was referred to the authors’ hospital with an acute-onset left pleurothotonus and intermittent opisthotonus. Neurological examination showed clinical signs consistent with a multifocal brain lesion, and neoplastic, vascular, inflammatory and infectious conditions were considered. Precontrast and postcontrast CT images of the brain were obtained and revealed a precontrast hyperattenuating lesion with ring enhancement affecting the left frontoparietal junction. There was severe perilesional oedema, moderate midline shift, and left caudal transtentorial and foramen magnum herniations. A neoplastic lesion with a recent haemorrhagic component was therefore suspected. Following medical treatment with a mannitol bolus and prednisone for eight days, the neurological examination was considered normal. A dark-grey capsulated mass was removed during a left frontoparietal craniectomy. Immediate postsurgical CT confirmed complete excision. Biopsy results were consistent with a cerebral vascular hamartoma. At 27-month follow-up, the dog was clinically normal.
ISSN:2052-6121
2052-6121
DOI:10.1136/vetreccr-2020-001107