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Related Experiment Videos

Primary encephalic plasma cell tumor in a dog

B J Sheppard1, C L Chrisman, S M Newell

  • 1Department of Pathobiology, University of Florida, Gainesville 32610-0145, USA.

Veterinary Pathology
|December 13, 1997
PubMed
Summary

This study reports the first case of a canine primary intracranial malignant plasma cell tumor. The rare brain tumor caused neurological signs in a dog, highlighting the need for advanced diagnostics.

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Area of Science:

  • Veterinary Neurology
  • Comparative Pathology
  • Oncology

Background:

  • Primary intracranial tumors are a significant cause of neurological disease in dogs.
  • Malignant plasma cell tumors typically arise from bone marrow or lymphoid tissues.

Observation:

  • A 5-year-old Spitz dog presented with head tilt, seizures, and quadriplegia.
  • Cerebrospinal fluid analysis revealed significant pleocytosis with atypical plasmacytoid cells and high protein levels.
  • Magnetic resonance imaging showed a brainstem lesion and meningeal enhancement.

Findings:

  • Necropsy confirmed sheets of pleomorphic, neoplastic plasmacytoid cells with immunoglobulin A expression.
  • Ultrastructural analysis revealed features consistent with plasma cell differentiation.

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  • This represents the first documented canine primary intracranial malignant plasma cell tumor.

    • Implications:

    • This case expands the differential diagnosis for canine brain tumors.
    • Understanding this rare tumor aids in veterinary neuro-oncology and comparative cancer research.
    • Further research is needed to understand the pathogenesis and treatment of canine intracranial plasma cell tumors.