RESUMO
UNLABELLED: This case report presents a 13-year-old girl who attended an orthodontic clinic for an ectopic UR5. After investigation, a diagnosis of an odontogenic myxoma was made and the tumour was excised. A panoramic radiograph taken almost two years earlier for another dental problem was found to show an ectopic UR5 associated with a subtle radiolucency. Odontogenic myxomas may be of higher frequency than once thought in the paediatric population and therefore should always be considered in the differential diagnosis of any intraosseous radiolucency. Any radiolucent area associated with an unerupted tooth should be investigated further or closely followed up. CLINICAL RELEVANCE: The odontogenic myxoma is a rare but potentially serious benign tumour of the jaws.
