RESUMO
Lymphangiomas are benign hamartomatous tumours similar to lymphatic vessel neoplasms, originating from lymphatic tissue sequestration and may or may not communicate with the rest of the system. There are several treatment options for lymphangioma, such as surgery, sclerotherapy, cryotherapy, lasers, steroids and bleomycin. Although surgery is the most indicated treatment, it can result in severe sequelae and loss of function in patients. The present case shows a 5-year-old patient diagnosed with extensive tongue lymphangioma and, due to the mutilation that would be caused by its complete excision, the option was for more conservative treatments such as laser therapy and cryotherapy. After follow-up for 8 years, the patient presents with preserved functions and controlled lesion.