This paper reports a case of a 10 year old female patient with a chief complaint of swelling in the floor of the mouth. During clinical examination, a large, floating, dome-shaped swelling was observed bilaterally. The probable clinical diagnosis was bilateral ranula. The treatment was performed through oral surgery, in which marsupialization of one injury and enucleation of the other was performed. Histopathological examination revealed extravasated mucin, surrounded by reactive granulation tissue containing foamy histiocytes. Despite the different types of treatment, both ranulas had good prognosis. During dental appointments, there was a significant improvement in oral hygiene. No recurrence was observed over an 18 month follow-up period. An accurate diagnosis and an appropriate treatment plan are fundamental for a successful treatment of ranulas in children. Regardless of the surgical technique, conservative maneuvers associated with careful clinical monitoring were indispensable for the longevity and success of treatment.
