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Nose Cancer (Fibrosarcoma) in Dogs

Nasal and Paranasal Sinus Fibrosarcoma in Dogs

 

Nasal and paranasal fibrosarcoma is characterized by a malignant tumor based in the connective tissue of the nasal passage or in the surrounding area. A fibrosarcoma specifically refers to the abnormal development of cells. It is typically a slow and invasive process that progresses to a critical state before it is discovered.

 

This medical condition usually affects dogs between the ages of nine and twelve. Gender is associated with this condition as well, with male dogs being more prone to fibrosarcoma than females. If treated, a dog can continue to have a life span of up to 36 months, versus five months, if left untreated.

 

The condition or disease described in this medical article can affect both dogs and cats. If you would like to learn more about how this disease affects cats, please visit this page in the PetMD health library.

 

Symptoms and Types

 

The abnormal cell development typically begins on one side of the sinus cavity (or nasal passage), but typically moves to the other side over time. There are a variety of outward signs that can develop, including:

 

  • Mucus discharge of the nose and/or eyes
  • Abnormal tear development (epiphora)
  • Pain in or around the nasal cavity
  • Sneezing
  • Pawing at the muzzle
  • Lack of appetite (anorexia)
  • Bad breath (halitosis)
  • Seizures
  • Loose teeth
  • Facial deformity – especially around muzzle

 

Causes

 

The causes for fibrosarcoma are currently unknown.

 

Diagnosis

 

There are several other medical conditions that must be ruled out prior to diagnosing fibrosarcoma, including bacterial, viral and fungal infections in the sinuses, hypertension (high blood pressure), parasites, foreign bodies, tooth root abscesses, and facial trauma. Magnetic resonance imaging (MRI) and computed tomography (CT) imaging can be helpful for reviewing the size of the tumor growth and how far it has spread, as well as whether the cells have spread into other parts of the dog's body.

 

 

 

 

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