Bilateral lymphangioma on the tongue in an adult patient: an unusual case report

Introduction: Lymphangioma is a benign, hamartomatous, non-encapsulated growth malformation, consisting of an enlarged and cystic lymphatic system. Case report: Female, 36 years-old, melanoderma, complaining of “balls” on her tongue. In the anamnesis, she reported having noticed an injury on the tongue for about 08 months, asymptomatic, slow growth and bleeding to the trauma. In the intraoral examination, a lesion in the form of a papulomatous plaque sensitive to touch affecting the region of the lateral border of tongue, measuring approximately 2.3 cm x 3 cm in diameter. Microscopically, it was observed the presence of large vessels located in the subepithelial region, covered by a layer of flattened endothelial cells that, inside, had suggestive eosinophilic material and the presence of proliferative lymphocyte nests. Thus, histopathological diagnosis was lymphangioma. After 15 days, he returned with a healed surgical area. The patient was referred for surgical removal and the present case has been under follow-up for 02 years. Conclusion: These lesions in adult patients are lesions that arose in childhood and the diagnosis is late, but they have a better prognosis due to its slow growth.