Abstract
Resumo Objetivo: O objetivo deste trabalho é relatar um caso de carcinoma mucoepidermoide palatino (CME) mimetizando uma mucocele, ressaltar os principais diagnósticos diferenciais e apontar a necessidade de uma biópsia para estabelecer o diagnóstico mesmo na suspeita de benigno. lesões reativas. Relato de caso: uma fêmea foi encaminhada a um estomatologista para avaliação de um inchaço no palato notado cerca de dois meses antes. O exame físico revelou nódulo submucoso translúcido, indolor, com halo eritematoso no palato mole direito. Considerando a aparência clínica, a hipótese diagnóstica incluiu mucocele e adenoma pleomórfico. Uma biópsia incisional foi realizada. A análise histológica do espécime mostrou diagnóstico definitivo de CME de baixo grau. O caso foi gerenciado através de uma incisão cirúrgica completa. Atualmente, ela tem sido acompanhada sem sinais de recorrência. Conclusão: o diagnóstico precoce da CME pode orientar um manejo terapêutico adequado e, consequentemente, promover um prognóstico favorável.
Highlights
Mucoepidermoid carcinoma (MEC) was first described by Stewart et al.[1] in 1945 and was named “mucoepidermoid tumor” because, at that time, it was not clear whether it had a benign or a malignant nature
MEC has been classified into three grades of malignancy, and this subdivision is useful in establishing tumor treatment and prognosis
The aim of this paper is to report a case of palatal MEC that clinically resembled a mucocele, to discuss the main clinical and histological differential diagnosis and to emphasize that even when the clinician has a strong suspicion of a benign reactive lesion, it is mandatory to perform a biopsy to confirm the diagnosis and to guide a proper treatment
Summary
Mucoepidermoid carcinoma (MEC) was first described by Stewart et al.[1] in 1945 and was named “mucoepidermoid tumor” because, at that time, it was not clear whether it had a benign or a malignant nature. Following the distribution of palatal salivary glands, all the lesions are off midline.[4] MEC diagnosis is based on the microscopic analysis. It is characterized by a combination of the following cell types – mucous, intermediate and squamous – which can be arranged in islands, nests and cystic formations. The patient was referred for an Army General Hospital and was managed through a complete surgical excision. She is being followed up 6 years at without any signs of recurrence or regional metastasis
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