Rare occurrence of sialadenoma papilliferum at lower lip

Abstract

Sialadenoma papilliferum (SP) is a rare intraoral neoplasm that superficially resembles any other papilloma. It mainly originates from the excretory ducts of minor salivary glands (MSGs). Despite the MSGs being widely distributed from the lips and nose up to the tonsils and bronchi, the handful number of SPs reported so far predominantly affected the palate; while many other locations remain relatively secluded. In here, we describe the clinical and pathological features of one such SP located at lower lip, a never been reported site in English literature.

Keywords

• Ductal papilloma
• lower lip
• minor salivary gland
• sialadenoma papilliferum