What types of nasal tumors are there?
In some cases, chronic inflammation of the nose (rhinitis) leads to proliferation (hyperplasia) and formation of polyps in the nose or throat. These polyps are not cancerous but may need removal. The chronic inflammation is often due to infections with viruses, bacteria and/or fungi and also occurs in animals with a tendency to allergies (atopic animals). Some chronic infections predispose the pet to cancer. Most nasal cancers originate from the lining of the nose (epithelium). Benign tumors (adenomas) are rare but if they are surgically removable, they are curable. Malignant tumors (carcinomas) are more common with many different types. All of them invade and destroy adjacent structures. They rarely spread (metastasize) elsewhere in the body. A few carcinomas originate from hormone-producing neuroendocrine cells. These may invade the brain. A few cancers originate from the supporting connective tissues of the nose (cartilage, fibrous tissue or bone). These sarcomas tend to be less agg
