RESUMO
BACKGROUND: Pleomorphic adenoma is a salivary gland tumour and mostly found in the parotid gland and quite uncommon in the submandibular gland. Pleomorphic tumours are a mixed tumour (benign mixed tumour) consisted of epithelium, myoepithelium, and mesenchyme and made of a view component variation of it. CASE REPORT: We reported a fifty-three years old man with pleomorphic adenoma that has been complaining swelling on the left neck for the last twenty years and treated with surgical excision. Computed tomography of the neck showed soft tissue tumour in the left submandibular. CONCLUSIONS: The best management for pleomorphic adenoma is surgery, the tumour tissue must be removed as a whole because the remaining parts of a tumour can easily become recurrent or turn into a malignant tumour.