BILATERAL FIBROEPITHELIAL ORAL POLYPS CONTAINING KUTTNER TUMOR OF MINOR GLANDS

Abstract

We report a case of bilateral fibroepithelial oral polyps associated with chronic sclerosing sialadenitis (Kuttner tumor) of minor salivary glands. A 71-year-old leukoderma female patient presented with a couple of asymptomatic slow-growing nodules on the mouth. Nodules were present on the retromolar region for about 1 year, both with lump sessile base, normal color, and firm consistency. Excisional biopsies were performed and microscopic slides revealed repetitive aspects for both lesions: presence of hyperplastic epithelium on surface and hyperplasic fibrous connective tissue that encompasses the minor salivary glands presenting patchy infiltrates of mononuclear inflammatory cells, acinar substitution by fibrous tissue, lobular architecture preservation, ducts with squamous metaplasia, and periductal fibrosis. Conclusive diagnosis was fibrous hyperplasia combined with chronic sclerosing sialadenitis. This case is interesting because it shows an uncommon bilateral involvement of this under-recognized disease called chronic sclerosing sialadenitis (Kuttner Tumor) with a reactive hyperplastic lesion.