Gliomas are the second most common intracranial tumors in dogs after meningiomas. The treatment of choice for intracranial tumors is a combination of surgical resection and radiotherapy, reporting the longest average survival time. Surgical treatment of gliomas can be challenging due to their intra-axial location and the potential perioperative complications. Most of the surgically-resected gliomas present a frontal or temporal location, allowing access and surgical excision through transfrontal, frontoparietal and parietotemporal craniectomies. This case describes the successful surgical resection of a canine oligodendroglioma located in the piriform lobe through a deep lateral temporal craniectomy and its results. Considering the outcome of this patient, surgical resection of piriform tumors is possible without aggravating the neurological signs.
1. Rossmeisl JH. New Treatment Modalities for Brain Tumors in Dogs and Cats. Vet Clin North Am Small Anim Pract. 2014;44(6):1013-1038.
2. Suñol A, Mascort J, Font C, Bastante AR, Pumarola M, Luján A. Long-term follow-up of surgical resection alone for primary intracranial rostrotentorial tumors in dogs: 29 cases (2002-2013). Open Vet J. 2018;7(4):375.
3. Dickinson PJ. Advances in Diagnostic and Treatment Modalities for Intracranial Tumors. J Vet Intern Med. 2014;28(4):1165-1185
4. Hu H, Barker A, Harcourt-Brown T, Jeffery N. Systematic Review of Brain Tumor Treatment in Dogs. J Vet Intern Med. 2015;29(6):1456-1463.
5. Niebauer GW, Dayrell-Hart BL, Speciale J. Evaluation of craniotomy in dogs and cats. J Am Vet Med Assoc. 1991;198(1):89-95.
6. Song RB, Vite CH, Bradley CW, Cross JR. Postmortem evaluation of 435 cases of intracranial neoplasia in dogs and relationship of neoplasm with breed, age, and body weight. J Vet Intern Med. 2013;27(5):1143-1152.
7. Hicks J, Platt S, Stewart G, et al. Intratumoral temozolomide in spontaneous canine gliomas: feasibility of a novel therapy using implanted microcylinders. Vet Med Sci. 2019;5(1):5-18.
8. Hubbard ME, Arnold S, Bin Zahid A, et al. Naturally Occurring Canine Glioma as a Model for Novel Therapeutics. Cancer Invest. 2018;36(8):415-423.
9. Farré A, Borrego Fco, Pumarola M, Luján A. Treatment outcome of surgically reintervened recurrent intracranial glioma in 4 dogs. Present at ESVN, Copenhagen, 20-22 September 2018.
10. Young BD, Levine JM, Porter BF, et al. Magnetic resonance imaging features of intracranial astrocytomas and oligodendrogliomas in dogs. Vet Radiol Ultrasound. 2011;52(2):132-141.
11. Jr JHR, Jones JC, DP. Survival time following hospital discharge in dogs with palliatively treated primary brain tumors. JAm Anim Hosp Assoc. 2008:193-198.
12. Farré A, Borrego F, Pumarola M, Luján A. Cirugía y temozolamida para el tratamiento de gliomas caninos. Present at AVEPA-GTA, Bilbao, 28-29 April 2017.
13. Shores A: Lateral (Rostrotentorial) Craniotomy/Craniectomy. En Hoboken (ed): Current Techniques in Canine and Feline Neurosurgery. New Jersey, John Wiley and Sons, 2017; 109-114.
14. MacLellan J, Arnold S, Dave A, Hunt M, Pluhar G. Association of magnetic resonance imaging-based preoperative tumor volume with postsurgical survival time in dogs with primary intracranial glioma. J´Am Vet Med Assoc. 2018;252(1):98-102.