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WHO Classification of Tumours
Canalicular adenoma
Salivary glands


Definition

A benign epithelial neoplasm primarily composed of branching and interconnecting cords of single and double-cell rows of columnar epithelium in a loose stroma.
It often occurs in the upper lip, where only pleomorphic adenoma is more frequent. Asymptomatic swelling of the upper lip is the most common clinical finding. It may present clinically and histologically as a multifocal lesion, a feature not generally seen with other intraoral salivary gland tumors.