Although uncommon, many variants of lipomatous lesions in or around salivary glands have been reported in the literature. We report a series of three such cases in the minor salivary gland region. The first case (oral floor) is a well-circumscribed lipocytic lesion admixed with glandular components (mucous acini, serous demilunes and ducts). The second case (alveolar mucosa) is a diffuse lipomatous proliferation with entrapped salivary glandular elements, muscles and blood vessels. The third case (palate) is similar to the first case but the gland is located at the periphery of the lesion. The purpose of the article was to report these three lesions and discuss in relation to other pertaining lipomatous lesions (sialolipoma, lipoadenoma, lipomatosis, lipometaplasia in pleomorphic adenoma and infiltrating lipoma).
Odontogenic cysts and tumors are well-recognized entities to the specialist oral pathologist and they seldom pose problems in differential diagnosis. This paper deals with an aggressive cystic lesion in the maxilla of a 65-year-old male that was characterized by a large radiographically multilocular lesion and a multicystic pattern microscopically. The categorization of this lesion was complicated by the presence of features suggestive of both glandular odontogenic cyst and cystic ameloblastoma with aggressive histologic phenotypes.
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