Section: Overview
Nasal and paranasal sinus fibrosarcomas are slow growing, progressive, invasive tumors of the nose, nasal cavity and surrounding communicating recesses.
As with other tumors, the cause is unknown. These tumors are seen more commonly in dogs than cats and are seen in all ages, although it is most common in middle aged and older animals. Fibrosarcoma of the nasal and paranasal sinus are seen more commonly in the male and there is no breed predilection.
What to Watch For
Nasal discharge
Epistaxis (bleeding from the nose)
Epiphora (tearing from the eyes)
Sneezing
Halitosis (bad breath)
Anorexia
Facial deformity
Exophthalmia (bulging eye)
Seizures (secondary to aggressive tumors invading the brain)
Diagnosis
Complete blood cell count (CBC)
Biochemical profile
Urinalysis
Chest X-rays
Skull/nasal X-rays
Computed tomography imaging (CT scan) or magnetic resonance imaging (MRI)
Nasal bacterial culture
Rhinoscopy (scoping the nasal cavity) and biopsy
Rhinotomy (cutting into the nasal cavity) and biopsy
Biopsy is necessary for a definitive diagnosis
Treatment
Surgery in combination with radiation therapy
Radiation therapy
Chemotherapy
Antibiotic therapy may be helpful in controlling secondary infection
Anti-inflammatory drugs may help as temporary symptomatic therapy if more aggressive treatment is not pursued.
Home Care and Prevention
Administer all medication and follow recommendations by your veterinarian. Follow up as directed. If your pet's condition is not improving and/or getting worse, seek veterinary attention at once.
Overall, nasal and paranasal fibrosarcomas are very aggressive, and carry a guarded prognosis.
There is no preventative care for fibrosarcoma.
