Yvette - Please log into your televets account to add to the question thread rather than asking a new one each time please. Thanks, David
Im pretty sure it will be an adenosarcoma.
Tumors of the nose and paranasal sinuses account for 1-2% of all canine or feline tumors. In dogs, 80% of these tumors are malignant, and 60-70% are carcinomas, of which adenocarcinoma is the most common.
Tumors of the nose and paranasal sinuses typically are very invasive locally and metastasize infrequently; metastasis is more likely in carcinomas and usually occurs late in the disease. Common sites of metastasis are regional lymph nodes, lungs, and brain.
Treatment largely depends on tumor type and extent of disease. The treatment of choice for canine nasal adenocarcinoma is radiation therapy. Aggressive surgical excision, chemotherapy, radiation therapy, or combinations for other tumor types afford a more favorable prognosis when diagnosis is made early
Hope that helps, best of luck with everything
David