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  1. Article: Case report: MRI and CT imaging features of a melanocytic tumour affecting a cervical vertebra in an adult dog, and review of differential diagnosis for T1W-hyperintense lesions.

    Michaelidou, Elli Elizabeth / Kaczmarska, Adriana / Gutierrez-Quintana, Rodrigo / Morris, Joanna / Hammond, Gawain / Cloquell, Ana

    Frontiers in veterinary science

    2024  Volume 11, Page(s) 1334813

    Abstract: A 7-year-old Lhasa Apso presented with a history of left thoracic limb lameness and neck pain. Magnetic resonance imaging revealed a well-defined, extradural lesion that was hyperintense on T1-weighted (T1W) images and isointense on T2-weighted (T2W) ... ...

    Abstract A 7-year-old Lhasa Apso presented with a history of left thoracic limb lameness and neck pain. Magnetic resonance imaging revealed a well-defined, extradural lesion that was hyperintense on T1-weighted (T1W) images and isointense on T2-weighted (T2W) images and T2* images located at the left lamina of the C4 vertebra. Computed tomography showed an isoattenuating and contrast-enhancing mass centered on the left C4 vertebral lamina with associated osteolysis. The mass was surgically debulked, and histopathology revealed a malignant melanocytic tumour. The patient recovered completely and received radiotherapy and three doses of the melanoma vaccine as adjunctive treatment. Eighteen months following treatment, the patient presented with neck pain again, but further investigations were declined at this stage, and the patient was euthanised. To the author's knowledge, this is the first case report describing the imaging characteristics of a cervical extradural melanocytic tumour in a dog. This case illustrates the MRI and CT imaging features and treatment of a canine melanocytic tumour of the cervical vertebrae.
    Language English
    Publishing date 2024-04-09
    Publishing country Switzerland
    Document type Case Reports
    ZDB-ID 2834243-4
    ISSN 2297-1769
    ISSN 2297-1769
    DOI 10.3389/fvets.2024.1334813
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Surgical management of a brain abscess due to plant foreign body in a dog.

    Cloquell, Ana / Mateo, Isidro

    Open veterinary journal

    2019  Volume 9, Issue 3, Page(s) 216–221

    Abstract: Background: Intracranial abscesses as a result of grass awn migration have been rarely described in the veterinary literature. The identification of their radiological features is mandatory for proper diagnosis. As occurs with abscesses in other organs, ...

    Abstract Background: Intracranial abscesses as a result of grass awn migration have been rarely described in the veterinary literature. The identification of their radiological features is mandatory for proper diagnosis. As occurs with abscesses in other organs, surgical drainage and directed antibiotic therapy should be considered the treatment of choice.
    Case description: A clinical case of a Great Dane dog with forebrain signs and magnetic resonance imaging and computed tomography findings compatible with intracranial abscess associated with inflammatory changes in orbital musculature is described. An exploratory rostro-tentorial craniotomy with durotomy was performed, allowing the drainage of purulent content and the extraction of a plant foreign body from the cerebral parenchyma. Antibiotic treatment was instituted and the patient was discharged without recurrence of neurological deficits other than quarterly seizures. Six months later, revision magnetic resonance was performed, revealing the resolution of the intracranial lesion and the normalization of the extracranial tissues.
    Conclusion: This is the first case in veterinary literature in which a grass awn has been surgically extracted from the brain of a dog with long-term outcome described. Observed changes in the extracranial musculature were fundamental to establish the pre-surgical diagnosis of a migratory foreign body.
    MeSH term(s) Animals ; Brain Abscess/surgery ; Brain Abscess/veterinary ; Craniotomy/veterinary ; Dog Diseases/surgery ; Dogs ; Female ; Foreign Bodies/complications ; Foreign Bodies/surgery ; Foreign Bodies/veterinary ; Magnetic Resonance Imaging/veterinary ; Poaceae ; Tomography, X-Ray Computed/veterinary ; Treatment Outcome
    Language English
    Publishing date 2019-08-03
    Publishing country Libya
    Document type Case Reports
    ZDB-ID 2651664-0
    ISSN 2218-6050 ; 2226-4485
    ISSN (online) 2218-6050
    ISSN 2226-4485
    DOI 10.4314/ovj.v9i3.5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Dorsal Atlantoaxial Ligament Hypertrophy as a Cause for Clinical Signs in Dogs with Dens Abnormalities.

    Cloquell, Ana / Orlandi, Rocio / Vázquez, Fernando / Mateo, Isidro

    Journal of the American Animal Hospital Association

    2020  Volume 57, Issue 1, Page(s) 26–31

    Abstract: The objective of this study is to suggest clinical and subclinical atlantoaxial (AA) instability as a cause for dorsal AA ligament hypertrophy responsible for clinical signs in dogs with dens abnormalities. Clinical information from five dogs with ... ...

    Abstract The objective of this study is to suggest clinical and subclinical atlantoaxial (AA) instability as a cause for dorsal AA ligament hypertrophy responsible for clinical signs in dogs with dens abnormalities. Clinical information from five dogs with malformed dens and dorsal spinal cord compression at the AA junction was collected. All dogs had neck pain, associated with tetraparesis in three cases. Radiological examination revealed hypoplastic dens in two dogs and a defect in its ossification in the other three. Stress views were able to demonstrate obvious AA instability only in two cases, but it was suspected in the other owing to response to surgical fixation of the joint and the presence of a dorsal compressive band, which was considered an enlarged dorsal AA ligament. Surgical and histopathological examination of compressive tissue confirmed hypertrophy of the ligament. Long-term prognosis in the four operated cases, either by dorsal decompression and ventral fixation or by ventral fixation alone, was excellent. A malformed dens can cause subclinical instability, unnoted in dynamic studies. As instability may lead to hypertrophy of joint ligaments, soft tissue changes (specifically dorsal AA ligament hypertrophy) points out this instability and the need for joint fixation if surgical management is required.
    MeSH term(s) Animals ; Atlanto-Axial Joint/pathology ; Dog Diseases/pathology ; Dogs ; Female ; Hypertrophy/pathology ; Hypertrophy/veterinary ; Joint Instability/pathology ; Joint Instability/veterinary ; Ligaments, Articular/pathology ; Male ; Odontoid Process/abnormalities ; Odontoid Process/pathology
    Language English
    Publishing date 2020-11-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 410383-x
    ISSN 1547-3317 ; 1062-8266 ; 0587-2871
    ISSN (online) 1547-3317
    ISSN 1062-8266 ; 0587-2871
    DOI 10.5326/JAAHA-MS-7013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 4255: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  4. Article ; Online: Magnetic resonance imaging findings and clinical management of suspected intracranial hypovolemia after transfrontal craniotomy in a dog.

    Cloquell, Ana / Kaczmarska, Adriana / Gutierrez-Quintana, Rodrigo / José-López, Roberto

    Veterinary surgery : VS

    2021  Volume 50, Issue 8, Page(s) 1696–1703

    Abstract: Objective: To report the diagnosis and clinical management of a case of suspected intracranial hypovolemia (IH) in a dog after resection of a large fronto-olfactory chordoid meningioma.: Study design: Clinical case report.: Animal: One 8-year-old ... ...

    Abstract Objective: To report the diagnosis and clinical management of a case of suspected intracranial hypovolemia (IH) in a dog after resection of a large fronto-olfactory chordoid meningioma.
    Study design: Clinical case report.
    Animal: One 8-year-old border collie with forebrain neurological signs caused by a fronto-olfactory extra-axial mass diagnosed by using MRI.
    Methods: The dog underwent bilateral transfrontal craniotomy for excision of the mass by using ultrasonic aspiration. Immediate postsurgical MRI revealed complete gross resection with no evidence of early-onset complications such as edema, hemorrhage, mass effect, or pneumoencephalus. However, diffuse symmetric meningeal thickening and contrast enhancement were noted. No complications were noted during surgery or while under anesthesia.
    Results: Neurological deterioration was observed postoperatively. No abnormalities were detected systemically. Thus, early MRI-confirmed findings and neurological deterioration were suspected to be caused by IH. Conservative treatment consisting of bed rest, gabapentin, and intravenous theophylline was then initiated in addition to steroids, antiepileptic drugs, and antibiotics. A gradual neurological improvement was observed, and the dog was discharged completely ambulatory with moderate proprioceptive ataxia 15 days after surgery.
    Conclusion: The clinical and MRI-confirmed findings reported here are consistent with IH, a well-described syndrome in man. This is the first report of a dog with MRI-confirmed findings consistent with IH describing subsequent response to medical management.
    Clinical significance: Intracranial hypovolemia after craniotomy should be considered when there is neurological deterioration and characteristic MRI-confirmed findings.
    MeSH term(s) Animals ; Craniotomy/veterinary ; Dog Diseases/diagnostic imaging ; Dog Diseases/etiology ; Dog Diseases/surgery ; Dogs ; Hypovolemia/veterinary ; Magnetic Resonance Imaging/veterinary ; Meningeal Neoplasms/surgery ; Meningeal Neoplasms/veterinary ; Meningioma/surgery ; Meningioma/veterinary
    Language English
    Publishing date 2021-02-20
    Publishing country United States
    Document type Case Reports
    ZDB-ID 1491071-8
    ISSN 1532-950X ; 0161-3499
    ISSN (online) 1532-950X
    ISSN 0161-3499
    DOI 10.1111/vsu.13586
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Magnetic resonance imaging findings and clinical management of suspected intracranial hypovolemia after transfrontal craniotomy in a dog

    Cloquell, Ana / Kaczmarska, Adriana / Gutierrez‐Quintana, Rodrigo / José‐López, Roberto

    Veterinary surgery. 2021 Nov., v. 50, no. 8

    2021  

    Abstract: OBJECTIVE: To report the diagnosis and clinical management of a case of suspected intracranial hypovolemia (IH) in a dog after resection of a large fronto‐olfactory chordoid meningioma. STUDY DESIGN: Clinical case report. ANIMAL: One 8‐year‐old border ... ...

    Abstract OBJECTIVE: To report the diagnosis and clinical management of a case of suspected intracranial hypovolemia (IH) in a dog after resection of a large fronto‐olfactory chordoid meningioma. STUDY DESIGN: Clinical case report. ANIMAL: One 8‐year‐old border collie with forebrain neurological signs caused by a fronto‐olfactory extra‐axial mass diagnosed by using MRI. METHODS: The dog underwent bilateral transfrontal craniotomy for excision of the mass by using ultrasonic aspiration. Immediate postsurgical MRI revealed complete gross resection with no evidence of early‐onset complications such as edema, hemorrhage, mass effect, or pneumoencephalus. However, diffuse symmetric meningeal thickening and contrast enhancement were noted. No complications were noted during surgery or while under anesthesia. RESULTS: Neurological deterioration was observed postoperatively. No abnormalities were detected systemically. Thus, early MRI‐confirmed findings and neurological deterioration were suspected to be caused by IH. Conservative treatment consisting of bed rest, gabapentin, and intravenous theophylline was then initiated in addition to steroids, antiepileptic drugs, and antibiotics. A gradual neurological improvement was observed, and the dog was discharged completely ambulatory with moderate proprioceptive ataxia 15 days after surgery. CONCLUSION: The clinical and MRI‐confirmed findings reported here are consistent with IH, a well‐described syndrome in man. This is the first report of a dog with MRI‐confirmed findings consistent with IH describing subsequent response to medical management. CLINICAL SIGNIFICANCE: Intracranial hypovolemia after craniotomy should be considered when there is neurological deterioration and characteristic MRI‐confirmed findings.
    Keywords Collie ; anesthesia ; brain ; case studies ; dogs ; edema ; excision ; hemorrhage ; hypovolemic shock ; intravenous injection ; magnetism ; resection ; theophylline ; ultrasonics
    Language English
    Dates of publication 2021-11
    Size p. 1696-1703.
    Publishing place John Wiley & Sons, Inc.
    Document type Article
    Note Case Reports
    ZDB-ID 1491071-8
    ISSN 1532-950X ; 0161-3499
    ISSN (online) 1532-950X
    ISSN 0161-3499
    DOI 10.1111/vsu.13586
    Database NAL-Catalogue (AGRICOLA)

    Full text online

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  6. Article ; Online: Intervertebral T3-T4 Disc Extrusions in Two German Shepherd Dogs.

    Mateo, Isidro / Vet, Lic / Paniagua, Rocio / Vet, Grado / Cloquell, Ana / Vazquez, Fernando

    Journal of the American Animal Hospital Association

    2019  Volume 55, Issue 3, Page(s) e55303

    MeSH term(s) Animals ; Decompression, Surgical/methods ; Decompression, Surgical/veterinary ; Dog Diseases/surgery ; Dogs ; Intervertebral Disc Displacement/pathology ; Intervertebral Disc Displacement/surgery ; Intervertebral Disc Displacement/veterinary ; Laminectomy/methods ; Laminectomy/veterinary ; Male ; Thoracic Vertebrae
    Language English
    Publishing date 2019-03-14
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 410383-x
    ISSN 1547-3317 ; 1062-8266 ; 0587-2871
    ISSN (online) 1547-3317
    ISSN 1062-8266 ; 0587-2871
    DOI 10.5326/JAAHA-MS-6883
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 4255: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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