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An unusual pleomorphic adenoma

2014; CENTRO DE PESQUISAS ODONTOLOGICAS SAO LEOPOLDO MANDIC; Volume: 62; Issue: 3 Linguagem: Inglês

10.1590/1981-86372014000300000141930

1981-8637

Christiano Sampaio Queiróz, Roberto Almeida de Azevedo, Antônio Irineu Trindade Neto, Caetano Guilherme Carvalho Pontes, Rafael de Queiroz Moura,

Oral and Maxillofacial Pathology

Pleomorphic adenoma is the most common neoplasm in major and minor salivary glands. It constitutes approximately 90% of all benign salivary gland lesions and the parotid is the most affected location. When the minor salivary glands are affected, it mostly occurs at the junction of the hard and soft palates. The diagnosis is complex because of the great histological variety and biological behavior of this tumor, a histopathological examination being essential. The recommended treatment is surgical excision. For lesions located superficially in the parotid gland, superficial parotidectomy - identifying and preserving the facial nerve - is necessary. Lesions in the palate or gums sometimes demand a margin of safety, being excised below the periosteum, including the overlying mucosa. With correct surgical removal, the prognosis is excellent. The aim of this study is to report a case of an unusual minor salivary gland pleomorphic adenoma in the hard palate, describing the most important aspects of this pathology.