Publications by authors named "Sergio Rodenas"

Article Synopsis
  • * Out of the dogs examined, 12.4% exhibited MRI features of PC, primarily affecting regions like the piriform lobe and hippocampus, with a higher occurrence in dogs experiencing cluster seizures or status epilepticus.
  • * The results indicated that dogs with unknown-origin epilepsy showed a greater likelihood of having PC compared to those with structural or idiopathic epilepsy, and PC were more common when the time between the last seizure and MRI was shorter.
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Objective: To report the surgical treatment and outcome of six bulldogs with spina bifida (SB) and meningocele (MC) or meningomyelocele (MMC).

Study Design: Case series.

Animals: Five French bulldogs and one English bulldog with MC or MMC.

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MRI is considered gold standard for the diagnosis of presumptive acute hydrated non-compressive nucleus pulposus extrusions (AHNCNPE). This retrospective study describes the myelographic findings in dogs with AHNCNPE diagnosed by low-field MRI and their association with neurological grade, need of surgical decompression and outcome. Forty-two myelographies (21 dogs with presumptive AHNCNPE, 21 dogs with Hansen type I disc disease herniation) were blindly evaluated.

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An 8-year-old cat was presented with severe neurological deficits secondary to a traumatic cervical spinal cord injury caused by an airgun pellet. This report describes, for the first time, the myelographic findings of a dural rupture in a cat and also describes a bilateral Horner's syndrome in a cat.

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A 7-month-old Australian kelpie dog and a 14-month-old Labrador retriever dog were diagnosed with an uncommon form of cerebellar abiotrophy called cerebellar granuloprival degeneration. This was characterized by a loss of the granular neurons with relative sparing of the Purkinje neurons.

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Objective: To report the clinical, imaging, pathologic findings, surgical planning, and long-term outcome after surgery in a dog with neurologic deficits because of a hypertrophic ganglioneuritis that compressed the spinal cord.

Study Design: Clinical report.

Animal: An 8-year-old male intact Yorkshire terrier.

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Magnetic resonance (MR) imaging is highly sensitive for detecting tuberculomas in human patients but the specificity of the MR imaging features is low. Misdiagnosis with intracranial neoplasia is common, especially with dural-based lesions or lesions located in the epidural space. We describe the MR imaging characteristics of an intracranial epidural tuberculoma caused by Mycobacterium tuberculosis infection in a dog.

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Objective: To describe the ophthalmologic, neurologic, and magnetic resonance imaging (MRI) findings of seven animals with acute postretinal blindness as sole neurologic deficit.

Methods: Medical records were reviewed to identify dogs and cats with postretinal blindness of acute presentation, that had a cranial MRI performed as part of the diagnostic workup. Only animals lacking other neurologic signs at presentation were included.

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Magnetic resonance (MR) images of 40 dogs with histologically confirmed primary and secondary intracranial tumours were reviewed. Forty-one tumours were diagnosed by means of MR imaging (MRI). MRI findings allowed diagnosis of a neoplastic lesion in 37/41 cases.

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An extradural chondroma originating in the cervical spine was diagnosed in an 8-year-old, intact male Chow-Chow that presented acute cervical pain and chronic right thoracic limb lameness. Myelographic images were within normal limits. With magnetic resonance (MR) imaging, an extradural mass was identified at the level of the C4-C5 vertebrae.

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An intradural-extramedullary myxoid liposarcoma of the high cervical spine was diagnosed in a 9-year-old, spayed female Cavalier King Charles spaniel that was presented for a 2-month history of cervical pain and tetraparesis. Radiation therapy applied after surgery resulted in complete remission of the neurological deficits. The tumor recurred 18 months after surgical excision.

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