College of Veterinary Medicine

People in WSU Veterinary Medicine

Annie Chen-Allen

Chen-Allen, AnnieAnnie Chen-Allen, DVM, MS, DACVIM
Associate Professor
Neurology and Neurosurgery


Texas A&M University, Bachelor of Science, 1995-1998
Texas A&M University, Doctor of Veterinary Medicine, 1998-2002
Washington State University, Small Animal Medicine and Surgery Internship, 2002-2003
Washington State University, Neurology and Neurosurgery Residency, 2003-2006
Washington State University, Masters of Veterinary Sciences, 2005-2008

Research Interests

Neuro-oncology – brain and spinal tumors
Novel therapies for brain tumors
Stereotactic brain biopsy and procedures
WSU Pituitary Team for transsphenoidal hypophysectomy
Cerebrospinal fluid biomarkers for neurological diseases


- *denotes senior authorship with graduate student listed first

  1. Thomovsky SA, Chen AV, Kiszonas AM, Lutskas LA. Goniometry and limb girth in miniature dachshunds. J Vet Med, 2016;2016:5846052
  2. *Brune, JE, Chen AV, Kiszonas AM. Characterization of iatrogenic blood contamination on lactate dehydrogenase and creatine kinase activity in canine cerebrospinal fluid. J Vet Intern Med. 2016 May-Jun
  3. Thomovsky SA, Chen AV, Deavila DM, Kiszonas AM. A pilot study: serum melatonin levels in normal dogs and dogs with seizures. J Vet Intern Med. 2015 May-Jun;29(4):1268
  4. *Cohn-Urbach MR, Chen AV, Haldorson GJ, Thomovsky SA. Perivascular wall tumor in the brain of a dog. Case Reports Vet Med. 2015:2015:1-4.
  5. *Kawalilak LT, Chen AV, Roberts GR. Imaging characteristics of disseminated Geosmithia argillacea causing severe diskospondylitis and meningoencephalomyelitis in a dog. Clinical Case Reports. 2015 Nov;3(11):901-906.
  6. Mitchell JW, Thomovsky SA, Chen AV, Layton AW, Haldorson G, Tucker RL, Roberts GR. Medulloblastoma in a grizzly bear (ursus arctos horribilis). J Zoo Wildl Med. 2015;46(3):624-628.
  7. *Houle JC, Chen AV, Brenna AC, Mealey KL, Kiszonas AM. Determination of optimal storage temperature and duration of analysis of total and isoenzyme lactate dehydrogenase activities in canine serum and cerebrospinal fluid. Vet Clin Pathol. 2015 Jun;44(2):253-61.
  8. Barker A, Williams JM, Chen AV, Bagley RS, Jeffery ND. Magnetic resonance imaging characteristics of primary hematomyelia in 3 dogs. Can Vet J. 2015 Mar;56(3):278-84.
  9. Chen AV, Thomovsky SA, Brune J, Boswell N, Houle JC. Evaluation of lactate dehydrogenase and creatine kinase activity in cerebrospinal fluid of dogs with neurological diseases. J Vet Intern Med. 2014 May-Jun;28(4):1355.
  10. Thomovsky SA, Chen AV, Tucker RL, Roberts GR, Mattoon JS, Kiszonas AM, Morimoto T. Accuracy of preoperative computed tomography and magnetic resonance imaging as compared to surgical findings in chondrodystrophic dogs with intervertebral disk disease. J Vet Intern Med. 2014 May-Jun;28(4):1355.
  11. Krull DP, Thomovsky SA, Chen AV, Mealey KA, Papich MG. Evaluation of transdermal administration of phenobarbital in healthy cats. J Vet Intern Med. 2014 May-Jun;28(3):1016
  12. Allen AJ, Chen AV, Barrington G, Bagley RB. Caudal occipital malformation syndrome of a 6 year old female Huacaya Alpaca. J Vet Intern Med. 2014 Mar;28(2):693-5.
  13. Young BD, Fosgate GT, Holmes SP, Wolff CA, Chen-Allen AV, Kent M, Platt SR, Savage MY, Schatzberg SJ, Levine JM. Evaluation of standard magnetic characteristics used to differentiate neoplastic, inflammatory, and vascular brain lesions in dogs. Vet Radiol Ultrasound. 2014 Jul-Aug;55(4):399-406.
  14. *Brenna AC, Chen AV, Houle JC, Mealey KM, Thomovsky SA. Determination of stability and storage parameters for optimal detection of creatine kinase and its isoenzymes in canine serum and cerebrospinal fluid. J Vet Intern Med. 2013 May-Jun;27:678.
  15. *Houle JC, Chen AV, Brenna AC, Mealey KM, Thomovsky SA. Activity and distribution of lactate dehydrogenase and its isoenzymes in the serum and cerebrospinal fluid of healthy canines. J Vet Intern Med. 2013 May-Jun;27:678-9.
  16. *Houle JC, Chen AV, Brenna AC, Mealey KM, Thomovsky SA. Determination of stability and storage parameters for optimal detection of lactate dehydrogenase and its isoenzymes in canine serum and cerebrospinal fluid. J Vet Intern Med. 2013 May-Jun;27:680-1.
  17. Thomovsky S, Chen-Allen AV. Will he walk again? Only Dr. Nociception knows! Vet J. 2013 Oct;198(1):7-8.
  18. Van Wie EY, Fosgate GT, Mankin JM, Jeffery ND, Kerwin SC, Levine GJ, Greatting HH, Chen AV, Barker AK, Levine JM. Prospectively recorded versus medical record-derived spinal cord injury scores in dogs with intervertebral disk herniation. J Vet Intern Med. 2013 Sep-Oct;27(5):1273-7
  19. Sondgeroth KS, McElwain TF, Allen AJ, Chen AV, Lau AO. Loss of neurovirulence is associated with reduction of cerebral capillary sequestration during acute babesia bovis infection. Parsit Vectors. 2013 Jun 18;16(1):181.
  20. Andersen BM, Pluhar GE, Seiler CE, Goulart MR, Grogan PT, SantaCruz KS, Schutten MM, Meints JP, Gallardo JL, Carlson C, O’Sullivan MG, Bentley RT, Packer RA, Thomovsky SA, Chen AV, Faissler D, Chen W, Hunt MA, Ohlfest JR. Vaccination for invasive canine meningioma induces in situ production of antibodies capable of antibody-dependent cell-mediated cytotoxicity. Cancer Research. 2013 May 15;73(19):2987-97.
  21. Chohan, AS, Greene SA, Keegan BD, Grubb TL, Chen AV. Intracranial pressure and cardiopulmonary variables during isoflurane or sevoflurane anesthesia at various minimum alveolar concentration multiples in normocapnic dogs. Am J Vet Res. 2013 Mar;74(3):369-74.
  22. *Namatame E, Chen AV, Thomovsky S, Tucker RL. Successful long-term use of itraconanzole for the treatment of Aspergillus diskospondylitis in a dog. Case Reports Vet Med. 2013;2013:1-4.
  23. *Harris JM, Chen AV, Tucker RL, Mattoon JS. Signalment, clinical features and magnetic resonance imaging characteristics of 23 cases of diskospondylitis in dogs, J Am Vet Med Assoc. 2013 Feb 1;242(3):359-65.
  24. Thomovsky SA, Chen AV, Roberts G. Spinal cord compression in two related Ursus arctos horribilis. J ZooWildl Med, 2012 Sep;43(3):588-95.
  25. Wolff CA, Holmes SP, Young BD, Chen AV, Kent M, Platt SR, Savage MY, Schatzberg SJ, Fosgate GT, Levine JM. Magnetic resonance imaging for the differentiation of neoplastic, inflammatory and cerebrovascular brain disease in dogs. J Vet Intern Med. 2012 May-Jun;26(3):589-97.
  26. Martinez SE, Bowen KA, Remsberg DM, Takemoto JK, Wright HM, Chen-Allen AV, Davies NM. High performance liquid chromatographic analysis of lacosamide in canine serum using ultraviolet detection: application to pre-clinical pharmokinetics in dogs. Biomed Chromatogr. 2012 May;26(5):606-9.
  27. Krugman L, Bryan JN, Mealey KL, Chen AV. Vincristine-induced central neurotoxicity in a collie homozygous for the ABCB1Δ mutation. J Small Anim Pract. 2012 Mar;53(3):185-7.
  28. *Wright HM, Chen AV, Martinez SE, Davies NM. Pharmacokinetics of oral rufinamide in dogs. J Vet Pharm Thera. 2012 Dec;35(6)529-33.
  29. *Wright HM, Chen AV, Talcott PA, Poppenga RH, Mealey KL. Intravenous fat emulsion (IFE) for treatment of ivermectin toxicosis in 3 dogs homozygous for the ABCB1-1Δ gene mutation. J Vet Emerg Crit Care. 2011 Dec;21(6):666-72.
  30. Chen AV, Wininger FA, Frey S, Comeau R, Bagley RS, Tucker RL, Schneider AR, Gay JM. Description and validation of a magnetic resonance imaging – guided stereotactic brain biopsy device in the dog. Vet Radiol Ultrasound. 2011 Sept-Oct;52(5):534-7.
  31. *Spall B, Chen AV, Tucker RL, Lahmers KK, Righter DJ, Hayles J. Imaging Diagnosis – Metastatic Adrenal Pheochromocytoma in a Dog. Vet Radiol Ultrasound. 2011 Sept-Oct;53(5):534-7.
  32. Young BD, Levine JM, Porter BF, Chen-Allen AV, Rossmeisl JH, Platt SR, Kent M, Fostgate GT, Schatzberg SG. Magnetic resonance imaging features of intracranial astrocytomas and oligodendrogliomas in dogs. Vet Radiol Ultrasound. 2011 Mar;(52):132-141.
  33. O’Brien CS, Bagley RS, Hicks DH, Chen AV, Wininger FA, Brumitt JW. Gamma-irradiated calvarium allograft cranioplasty in a cat following brain tumor removal. J Am Anim Hosp Assoc. 2010 Jul-Aug;46:268-273.
  34. *Schneider AR, Chen AV, Tucker RL. Imaging diagnosis – vertebral canal porcupine quill with presumptive secondary arachnoid diverticulum. Vet Radiol Ultrasound 2010 Mar-Apr;51(2):152-4.
  35. Chen AV, Bagley RS, Talcott PA. Confirmed 2,4-dichlorophenoxyacetic acid (2,4-D) toxicosis in a dog. J Am Anim Hosp Assoc. 2010;46:43-47.
  36. Levine JM, Fostgate GT, Chen AV, Rushing R, Nghiem PP, Platt RS, Bagley RS, Kent M, Hicks DG, Young BD, Schatzberg SJ. Magnetic resonance imaging in dogs with neurologic impairment due to acute thoracolumbar intervertebral disk herniation. J of Vet Intern. 2009 Nov-Dec;23(6):1220-1226.
  37. Wills TB, Chen AV, Haldorson GJ. Intracranial mass in a cat. Vet Clin Path. 2009 Mar;38(1):39-41.
  38. Hicks DG, Pitts MJ, Bagley RS, Vasavada A, Simon J, Chen AV, Wininger FA. In vitro biomechanical evaluation of a novel internal fixation implant and a traditional pin with polymethylmethacrylate internal fixation implant used to stabilize the C4-5 vertebral motion unit in canine cervical spines. Am J Vet Res. 2009 Jun;70(6):719-726.
  39. Chen AV, Bagley RS, West CL, Gavin PR, Tucker RL. Fecal incontinence and spinal cord abnormalities in seven dogs. J Am Vet Med Assoc. 2005;227:1945-1951.
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