RGO: Revista Gaúcha de Odontologia (Jan 2008)
Mucocele of the lower lip mucosa
Abstract
Mucocele, also known as mucous extravasation phenomenon, is a pseudocyst of traumatic etiology, in which a minor salivary gland ductruptures. Clinically it can be observed as a tumefaction or bubble; it is flaccid on palpation, asymptomatic, with a smooth surface andvariable size, and with coloring equal to that of the adjacent mucosa, or bluish, depending on its depth in the tissue. The patient generally reports a bubble that has burst and fills up again, releasing a salty tasting liquid. There is greater incidence in women (25.4%), between the ages of 8 and 14 years, the commonest site being the mucosa of the lower lip. In the present study, the authors will present a clinical case of mucocele seen at the School of Dentistry at the Federal University of Pelotas, in the State of Rio Grande do Sul, Brazil, in a patient, a 23-year-old leukoderma man, who presented a lesion situated in the mucosa of the lower lip on the right side, close to the bottom of the fold, measuring approximately 0.6 cm, with coloring similar to the adjacent normal mucosa. The treatment performed was surgical excision of the mucocele and the accessory glands involved in the region of the lesion. The histopathologic report confirmed the clinical diagnosis of mucocele.