Canalicular adenoma of the hard palate: A rare case report

Abstract

Canalicular adenoma (CA) is a rare, benign salivary gland tumor that has special tendency to occur
in the upper lip. Buccal mucosa is the second most common site. It occurs more often in older
patients with peak prevalence in the seventh decade of life. A definitive female predominance has
been reported. According to the latest English published literature, 531 cases of CA have been
reported. We present a case of CA of the hard palate that presented in a 29‑year‑old female patient.
The histopathological and immunohistochemical findings showed typical features of CA and intense
expression of pan‑cytokeratin and S‑100 protein. We also review its differential diagnosis from
other salivary gland tumors.
Key Words: Adenoma, canalicular, minor salivary gland, palate