Open AccessSynchronous Multifocal Canalicular Adenomas
Author(s) -
Ahmed S. Sultan,
Frank S.-C. Chang,
Thomas J. Cooper,
Mahsa Jessri
Publication year - 2021
Publication title -
head and neck pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 50
eISSN - 1936-0568
pISSN - 1936-055X
DOI - 10.1007/s12105-021-01293-w
Subject(s) - pathology , buccal mucosa , stroma , immunohistochemistry , adenoma , medicine , anatomy , biology , oral cavity , orthodontics
Canalicular adenoma (CAD) is an uncommon benign tumor of minor salivary glands with predilection for the upper labial mucosa. An 80-year-old female presented with nine submucosal nodules of the upper labial mucosa and bilateral buccal mucosa. Histopathologic examination revealed multifocal circumscribed tumor islands with a tubular growth pattern within a loose hypocellular myxoid background stroma. Interconnecting rows of columnar tumor cells imparted a canalicular morphology. In addition to the characteristic histopathologic findings, a comprehensive immunohistochemical panel supported a final diagnosis of multifocal CAD. Synchronous multifocality in CAD is an infrequent finding and this sine qua non clinicopathologic correlation article exemplifies such a case.