Salivary gland adenoma

From Dog
Histological appearance of a salivary adenoma[1]

Salivary gland adenomas are a relatively rare neoplasia of the canine salivary gland.

These benign tumors usually develop within the salivary gland, usually the mandibular and parotid gland and result in sialocoele formation.

Varying amounts of oral pain, dysphagia and nonpainful swelling, often in the submandibular region.

These tumors usually appear as single, firm and well circumscribed masses with a smooth cut surface[2].

Diagnosis requires histological analysis of biopsy material.

A differential diagnosis would include sialadenitis, sialolithiasis, salivary gland carcinoma and salivary gland adenocarcinoma[3].

Excisional sialoadenectomy is usually curative in most cases.


  1. Genelhu MC et al (2007) A comparative study between mixed-type tumours from human salivary and canine mammary glands. BMC Cancer 7:218
  2. Shimoyama Y et al (2006) Pleomorphic adenoma of the salivary gland in two dogs. J Comp Pathol 134(2-3):254-259
  3. Smrkovski OA et al (2006) Carcinoma ex pleomorphic adenoma with sebaceous differentiation in the mandibular salivary gland of a dog. Vet Pathol 43(3):374-377