title: Heterotopic and accessory salivary tissues.
abstract: Heterotopic salivary tissue is found where salivary glands are not normally placed or expected. Sites of predilection are in the neck, where the heterotopias appear to bear a relationship to the branchial apparatus, and within the mandible. Neoplastic transformation is unusual, especially so for the extraosseous heterotopias. This contrasts with accessory salivary tissue, which consists of detachments from a major salivary gland occurring along the external duct systems. Accessory salivary tissue is heir to all the diseases of the parent glands.
mesh_terms: D002828:Choristoma; D006801:Humans; D012468:Salivary Gland Neoplasms / Q000473:pathology*