Intraoral ductal papilloma of the lower lip in a 6-year-old patient

Abstract

Ductal papilloma is a type of rare salivary gland tumor of minor salivary glands and commonly seen in the lower lip and buccal vestibule. Ductal papilloma usually presents in the form of three histopathological variants, namely sialedenoma papilliferum, intraductal papilloma, and inverted ductal papilloma. The etiopathogenesis of a ductal papilloma remains unclear, but some authors suggest the association with human papilloma virus. Diagnosis of intraoral ductal papilloma predominantly depends on the histopathological features; however, clinical differential may include benign lesions such as mucocele, lipoma, and fibroma. Considering the benign and nonaggressive nature of such tumors, histopathology alone is suitable for the diagnosis. However, immunohistochemistry may be used in cases of aggressive growth or in malignant counterpart. In this case report, we report the rare case of intraoral ductal papilloma of the lower lip mimicking a mucocele in a 6-year-old female patient.