Retrobulbar pigmented peripheral nerve sheath tumor in a dog
- Resource Type
- Authors
- Alison B. Clode; Elizabeth Curto; Keith W. Montgomery; Brian C. Gilger; Jessica R Durrant
- Source
- Veterinary Ophthalmology. 19:518-524
- Subject
- medicine.medical_specialty
General Veterinary
medicine.diagnostic_test
Exophthalmos
040301 veterinary sciences
business.industry
04 agricultural and veterinary sciences
medicine.disease
Surgery
0403 veterinary science
03 medical and health sciences
0302 clinical medicine
medicine.anatomical_structure
Biopsy
030221 ophthalmology & optometry
Medicine
Sarcoma
medicine.symptom
business
Strabismus
Peripheral Nerve Sheath
Rhinoscopy
Nerve sheath neoplasm
Orbit (anatomy)
- Language
- ISSN
- 1463-5216
A 1-year-old male castrated Pug was referred for unilateral exophthalmos unresponsive to oral antibiotic and anti-inflammatory therapy. Clinical findings included exophthalmos of the left eye with lateral strabismus, resistance to retropulsion, and an elevated nictitans. Hematologic and biochemical analyses were within normal limits. Findings following computed tomography (CT) of the head included an expansile retrobulbar soft tissue mass with bony lysis extending into the left nasal cavity and nasopharynx. Ultrasound-guided fine-needle aspirates and biopsy samples obtained via rhinoscopy were nondiagnostic. Palliative exenteration was elected; the patient was euthanized 13 weeks following exenteration due to development of neurologic signs and perceived poor quality of life. The histopathologic diagnosis was a malignant pigmented peripheral nerve sheath tumor.