Transcallosal Removal of a Choroid Plexus Tumor From the Lateral Ventricle in a Dog. Case Report

Lehner, László; Czeibert, Kálmán; Benczik, Judit; Jakab, Csaba; Nagy, Gábor

doi:10.3389/fvets.2020.00536

Cited by 7 publications

(13 citation statements)

References 28 publications

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“…15 The survival time of another dog following surgical resection of a choroid plexus papilloma from the lateral ventricle through a transcallosal approach was at least 9 months. 16 Treggiari et al reported a median survival time of 3 years in dogs with infratentorial tumors. 17 Two of the dogs included in that study were diagnosed with a choroid plexus tumor.…”

Section: Discussionmentioning

confidence: 99%

“…However neurological deficits persisted throughout the dog's life 15 . The survival time of another dog following surgical resection of a choroid plexus papilloma from the lateral ventricle through a transcallosal approach was at least 9 months 16 . Treggiari et al reported a median survival time of 3 years in dogs with infratentorial tumors 17 .…”

Section: Discussionmentioning

confidence: 99%

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Use of a telovelar approach for complete resection of a choroid plexus tumor in a dog

Antonakakis

Carletti

Anselmi³

et al. 2022

Veterinary Surgery

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Objective: To describe a telovelar approach to the fourth ventricle for excision of a choroid plexus tumor within the ventricle.Animal: A 3-year-old entire male Chihuahua. Study design: Case report Methods: A 3-year-old dog with two-month history of progressive vestibular signs and subdued mentation was diagnosed with a fourth ventricle tumor. Gross total resection of the tumor was achieved through a telovelar approach to the fourth ventricle. Results: Complete removal of the tumor was confirmed on immediate postoperative MRI. The dog recovered from the surgical procedure without complications, displaying some neurological deficits as preoperatively. His neurological examination was normal 2 weeks after surgery and remained so until the time of writing this case report (28 months) without additional treatment. Conclusion:The telovelar approach allowed complete excision of a choroid plexus tumor located in the fourth ventricle of the dog reported here.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Use of a telovelar approach for complete resection of a choroid plexus tumor in a dog

Antonakakis

Carletti

Anselmi³

et al. 2022

Veterinary Surgery

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“…However, the lack of histological diagnosis for the tumor in this case and therefore the potential response to RT is a limitation of the case report. For tumors in the III ventricle, surgical resection has been successfully attempted in veterinary medicine ( 34 , 35 ). However, due to the very challenging location, it carries a high rate of complications and post-operative mortality, hence was not attempted in this case ( 4 , 36 , 37 ).…”

Section: Discussionmentioning

confidence: 99%

Case Report: Ventriculoperitoneal Shunting and Radiation Therapy Treatment in a Cat With a Suspected Choroid Plexus Tumor and Hypertensive Hydrocephalus

Mahon¹,

Eiras-Diaz²,

Mason³

et al. 2022

Front. Vet. Sci.

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A 14-year-old male neutered domestic short-hair cat was presented for a history of behavioral changes and episodes of urinary retention. Neurological examination was consistent with a multifocal intracranial neuroanatomical localization, with suspected right sided lateralisation and suspected raised intracranial pressure (ICP). Brain magnetic resonance imaging (MRI) revealed an intraventricular multilobulated well-defined T2W-hyperintense and T1W-isointense, markedly contrast enhancing mass lesion within the dorsal aspect of the III ventricle extending into the left lateral ventricle, causing hypertensive obstructive hydrocephalus. A ventriculoperitoneal shunt (VPS) was placed within the left lateral ventricle, followed by a radiation therapy (RT) course of 45 Gy total dose in 18 daily fractions. Six-months post-RT, computed tomography revealed mild reduction in mass size and resolution of the hydrocephalus. The patient was neurologically normal with no medical treatment. Raised ICP causes severe clinical signs, can lead to brain ischaemia and herniation, and significantly increases anesthetic risk during RT. Placement of a VPS in cats with hypertensive obstructive hydrocephalus may allow improvement of neurological signs due to raised ICP, and therefore making the patient a more stable candidate for anesthesia and radiation therapy.

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“…In veterinary medicine, the majority of studies concerning surgical treatment of brain tumors exist for meningiomas, which are normally much easier to access than intra-axial or intraventricular mass lesions [ 32 ]. There are only two reports about surgical treated intracranial CPTs in dogs which were located in the lateral and fourth ventricle and in which a tumor resection was performed via interhemispheric-transcallosal and a telovelar approach, respectively [ 34 , 35 ]. In both cases, the tumor was confirmed as CPP and both dogs demonstrated a favorable outcome with surgery.…”

Section: Discussionmentioning

confidence: 99%

Intracranial Subdural Fluid Accumulation Associated with a Choroid Plexus Carcinoma in a Dog

Schneider

Blutke

Matiasek

et al. 2022

Veterinary Sciences

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Choroid plexus tumors are commonly described as intraventricular mass lesions and account for 7–10% of intracranial, primary tumors in dogs. A 3-year-old Shetland sheepdog was presented with a history of slowly progressive lethargy, vision impairment and cognitive deficits. On magnetic resonance imaging, a subdural fluid accumulation (SFA) overlying and compressing the left parietotemporal lobe as well as multifocal changes consisting of cyst-like lesions, supposed intra-axial brain lesions and mild, multifocal meningeal thickening and generalized contrast enhancement were identified. Cerebrospinal fluid (CSF) analysis showed a mononuclear pleocytosis with negative results for infectious agents. The dog was treated with prednisolone followed by burr hole craniotomy with puncture of the SFA, which macroscopically appeared to be CSF-like fluid. After initial improvement, the dog deteriorated despite continuation of prednisolone and cytarabine therapy and was euthanized four weeks after surgery. Histopathology was consistent with a disseminated, neuroinvasive choroid plexus carcinoma (CPC) that involved the entire neuroaxis including the meninges of the brain and spinal cord. Immunohistochemical examination showed a strong Kir7.1 and a heterogenous cytokeratin-immunoreactivity in neoplastic cells. In conclusion, a CPC should be considered as a possible cause of a SFA even in the absence of an intraventricular mass lesion.

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Transcallosal Removal of a Choroid Plexus Tumor From the Lateral Ventricle in a Dog. Case Report

Cited by 7 publications

References 28 publications

Use of a telovelar approach for complete resection of a choroid plexus tumor in a dog

Use of a telovelar approach for complete resection of a choroid plexus tumor in a dog

Case Report: Ventriculoperitoneal Shunting and Radiation Therapy Treatment in a Cat With a Suspected Choroid Plexus Tumor and Hypertensive Hydrocephalus

Intracranial Subdural Fluid Accumulation Associated with a Choroid Plexus Carcinoma in a Dog

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