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Related Experiment Video

Updated: Oct 17, 2025

Subretinal Transplantation of Human Embryonic Stem Cell-Derived Retinal Tissue in a Feline Large Animal Model
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Subretinal Transplantation of Human Embryonic Stem Cell-Derived Retinal Tissue in a Feline Large Animal Model

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Spinal ectopic choroid plexus papilloma in a cat.

Joana Tabanez1, Samuel Beck2, Colin Driver1,3

  • 1Neurology and Neurosurgery Department, Fitzpatrick Referrals Orthopaedics and Neurology, Eashing, UK.

JFMS Open Reports
|October 14, 2021
PubMed
Summary

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A rare ectopic choroid plexus neoplasm was surgically removed from a cat's spinal cord, leading to neurological recovery. This case highlights the importance of considering rare tumors in feline spinal conditions.

Area of Science:

  • Veterinary Neurology
  • Comparative Oncology
  • Neurosurgery

Background:

  • Spinal cord tumors are uncommon in cats.
  • Intradural extramedullary masses can cause progressive paraparesis.
  • Accurate diagnosis is crucial for effective treatment.

Observation:

  • A 10-year-old cat presented with paraparesis due to a spinal mass at T1.
  • MRI revealed a compressive intradural extramedullary lesion.
  • Histopathology and immunohistochemistry identified an ectopic choroid plexus neoplasm.

Findings:

  • Surgical resection via laminectomy and durotomy was performed.
  • The neoplasm showed specific cellular morphology and immunophenotype.
  • Postoperative follow-up showed neurological improvement without recurrence.
Keywords:
E-cadherinExtraventricular choroid plexusatypical choroid plexus papillomacytokeratinimmunohistochemistrysurgical management

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Implications:

  • This case expands the understanding of rare spinal neoplasms in felines.
  • Ectopic choroid plexus neoplasms should be considered in feline spinal differentials.
  • Successful surgical management can lead to positive long-term outcomes.