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Mouth Cancer (Amelobastoma) in Dogs

Ameloblastoma in Dogs

Ameloblastoma, formerly referred to as adamantinoma, is a rare tumor that impacts the dental structures of dogs. While typically benign, there exists a rare, aggressive malignant variant. It can manifest anywhere within the dental arcade and tends to afflict middle-aged to older dogs, following the pattern of many cancers.

Symptoms and Types

Typically benign, Ameloblastoma tends to stay localized, presenting as a firm, smooth mass on the gingival area. The presence of this mass often prompts dog owners to seek veterinary care.


The precise cause remains unidentified.


To diagnose Ameloblastoma in your dog, provide a detailed history of its health and symptom onset to your veterinarian. A thorough physical examination, focusing on the oral cavity and the tumor mass, will be conducted. Various laboratory tests, including a complete blood profile, chemical blood profile, complete blood count, and urinalysis, will be performed, typically yielding results within normal ranges. X-ray images of the skull can help assess the extent of neoplasm penetration into bone structures. A computed tomography (CT) scan offers more detailed insights and aids in treatment planning. Deep tissue biopsy is often necessary to examine samples of deeply penetrated neoplasm tissue, determining whether the neoplasm is benign or malignant.


For ameloblastoma, surgical excision remains the primary treatment for most benign neoplasms. Once the size, location, and depth of penetration are determined, your veterinarian will schedule a surgery to remove the entire mass. During the procedure, margins of normal tissue are also removed to ensure complete excision of the neoplasm. In some cases, radiation therapy alone effectively resolves the issue, while in others, a combination of surgical excision and radiation therapy may be necessary for a complete cure.

Living and Management

Following surgical treatment, most patients typically regain normal health without complications. Adhere to your veterinarian’s post-operative guidelines, including any special dietary recommendations, until your dog fully recovers and resumes normal eating habits. After surgery or radiation therapy, your veterinarian will schedule follow-up appointments every three months for comprehensive evaluations and progress assessments. During these visits, your veterinarian will monitor for any signs of tumor regrowth to ensure continued health and well-being.

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