J Vet Sci.  2017 Mar;18(1):115-118. 10.4142/jvs.2017.18.1.115.

Recurrence after exenteration for canine orbital malignant schwannoma

  • 1Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea. kmseo@snu.ac.kr
  • 2Seoul Animal Clinic, Seoul 06199, Korea.
  • 3Hyeongwoo Animal Hospital, Seoul 05391, Korea.
  • 4Department of Veterinary Pathology, College of Veterinary Medicine, Jeju National University, Jeju 63243, Korea.


A 14-year-old Maltese dog presented with progressive exophthalmos and external deviation of the right eye. Ultrasonography revealed the presence of a retrobulbar mass and fine-needle aspiration cytology was performed, which detected a malignant mass. There was no evidence of metastasis on thoracic and abdominal radiography. Computed tomography showed no invasion into the bony orbit and no metastasis to the lung or lymph nodes. Exenteration was performed to remove the mass completely. Malignant peripheral nerve sheath tumor was confirmed by histopathological examination.


dogs; neoplasms; neurilemmoma; orbit
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