Section: Overview
Nasal and paranasal sinus chondrosarcoma are slow growing, progressive, invasive tumors of the nose, nasal cavity and surrounding communicating recesses.
As with most tumors, the cause is unknown. These tumors are seen more commonly in dogs than cats and are seen in all ages; however, they are most common in middle aged animals. Chondrosarcoma tends to develop at a younger age than other nasal tumors. There are no breed predilections.
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 radiographs
Nasal bacterial culture
Computed tomography imaging (CT scan) or magnetic resonance imaging (MRI)
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 dietary recommendations as directed by your veterinarian. Follow up as directed.
If your pet's condition does not improve or becomes worse, seek veterinary attention at once. Overall, nasal and paranasal sinus chondrosarcomas are very aggressive and carry a guarded prognosis.
There is no preventative care for chondrosarcoma.
