Vet Med - Czech, 2014, 59(3):146-149 | DOI: 10.17221/7383-VETMED

Diagnosis of a brachial plexus tumour using magnetic resonance imaging assisted by fine-needle aspiration biopsy in a dog: a case reportCase Report

Y. Zhalniarovich1, Z. Adamiak1, P. Holak1, P. Przyborowska1, A. Pomianowski2
1 Department of Surgery and Radiology University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
2 Department of Internal Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland

This study describes a case of a six-year-old female crossbreed dog that had a three months history of progressive right thoracic limb lameness. Palpation revealed muscle atrophy of the scapular and humeral area and painfulness in this region. Magnetic resonance imaging was performed in T1- and T2-weighted and STIR (short inversion recovery) sequences in sagittal and transverse planes. The masses around the scapula and humerus were heterogeneously hyper-intense in STIR and measured about 9 cm. The tumour was heterogeneously iso-intense relatively to the surrounding tissues in T-2 weighted Gradient Echo and Spin Echo sequences. After MRI fine needle aspiration of a central part of the tumour was performed. The biopsy revealed multiple round cells with very little cytoplasm and fusiform cells in which the cytoplasm created protrusions. Cells were arranged in rows or formed a homogeneous cell mass. A malignant peripheral nerve sheath tumour was diagnosed cytologically.

Keywords: magnetic resonance imaging; brachial plexus; tumour; fine needle biopsy; dog

Published: March 31, 2014  Show citation

ACS AIP APA ASA Harvard Chicago Chicago Notes IEEE ISO690 MLA NLM Turabian Vancouver
Zhalniarovich Y, Adamiak Z, Holak P, Przyborowska P, Pomianowski A. Diagnosis of a brachial plexus tumour using magnetic resonance imaging assisted by fine-needle aspiration biopsy in a dog: a case report. Vet Med - Czech. 2014;59(3):146-149. doi: 10.17221/7383-VETMED.
Share...
Download citation
  • BibTeX (.bib)
  • Bookends (.ris)
  • EasyBib (.ris)
  • EndNote (.enw)
  • EndNote 8 (.xml)
  • ISI WoS (.isi)
  • Medlars (.medlars)
  • Mendeley (.ris)
  • MODS (.xml)
  • Papers (.ris)
  • RefWorks (.txt)
  • RefManager (.ris)
  • RIS (.ris)
  • MS Word (.xml)
  • Zotero (.ris)
    • Open full article

    References

    1. Bradley RL, Withrow SJ, Snyder SP (1982): Nerve sheath tumors in the dog. Journal of the American Animal Hospital Association 18, 915-921.
    2. Brehm DM, Vite CH, Steinberg HS, Haviland J, Van Winkle T (1995): A retrospective evaluation of 51 cases of peripheral nerve sheath tumors in the dog. Journal of the American Animal Hospital Association 31, 349- 359. Go to original source... Go to PubMed...
    3. Carmichael S, Griffiths IR (1981): Tumors involving the brachial plexus in seven dogs. Veterinary Record 108, 435-437. Go to original source... Go to PubMed...
    4. Castagno AA, Shuman WP (1987): MR imaging in clinically suspected brachial plexus tumor. AJR-American Journal of Roentgenology 149, 1219-1222. Go to original source... Go to PubMed...
    5. Cerofolini E, Landi A, DeSantis G, Maiorana A, Canossi G, Romagnoli R (1991): MR of bening peripheral nerve sheath tumors. Journal of Computer Assisted Tomography 15, 593-597. Go to original source... Go to PubMed...
    6. Dodd LG, Scully S, Layfield LJ (1997): Fine-needle aspiration of epithelioid malignant peripheral nerve sheath tumor (epithelioid malignant schwannoma). Diagnostic Cytopathology 17, 200-204. Go to original source...
    7. Evans HE (1993): Millers Anatomy of the Dog. 3rd ed. WB Saunders, Philadelphia. 841 pp.
    8. Hayes HM, Priester WA, Pendegrass TW (1975): Occurrence of nervous tissue tumors in cattle, horses, cats and dogs. International Journal of Cancer 15, 39-47. Go to original source... Go to PubMed...
    9. Hudson JA, Steiss JE, Braund KG, Toivio-Kinnucan M (1996): Ultrasonography of peripheral nerves during Wallerian degeneration and regeneration following transection. Veterinary Radiology and Ultrasound 37, 302-312. Go to original source...
    10. McCarthy RJ, Feney DA, Lipowitz AJ (1993): Preoperative diagnosis of tumors of the brachial plexus by use of computed tomography in three dogs. Journal of the American Veterinary Medical Association 202, 291- 294. Go to original source... Go to PubMed...
    11. Stastny JF, Frable WJ (1993): Diagnosis of primary nerve sheath tumor of the sphenoid sinus by fine needle aspiration biopsy. A case report. Acta Cytologica 37, 242-246. Go to PubMed...
    12. Targett MP, Dyce J, Houlton JEF (1993): Tumours involving the nerve sheaths of the forelimb in dogs. Journal of Small Animal Practice 34, 221-225. Go to original source...
    13. Wheeler SJ, Jones DGS, Wright JA (1986): The diagnosis of brachial plexus disorders in dogs: a review of twenty-two cases. Journal of Small Animal Practice 27, 147-157. Go to original source...

    This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY NC 4.0), which permits non-comercial use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.


    Return to the content