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Myofibroma is a rare benign nodular tumor of the soft tissues, bones, or internal organs, and may affect both children and adults. It is mostly found in the head and neck region, although uncommon in the jaw bones, where only a few lesions have been described. Radiographically, it may appear as a well-defined unilocular radiolucent entity simulating a cystic or odontogenic lesion. Histopathologic findings alone may be insufficient for a final diagnosis, and immunostaining for markers such as vimentin, alpha-smooth muscle actin, desmin and S-100 may be required. Intraosseous myofibroma is a diagnostic challenge and requires careful histopathologic, immunohistochemical and radiographic correlation. The present article describes a conservatively treated intraosseous myofibroma that occurred in a 7-year-old girl. The clinical, radiographic, histopathologic and immunohistochemical features are discussed.

Mandibular arteriovenous malformation is a severe vascular pathological condition that may lead to life-threatening hemorrhages. In child and teenaged patients, a conservative treatment is preferred to avoid profuse blood loss and/or mutilating alterations in the still-growing patients' face. The aim of this article was to present a case of an 11-year-old boy with an arteriovenous malformation involving the left mandible and treated by means of endovascular embolization with direct lesional delivery of N-butyl-cyanoacrylate glue through transfemoral catheterization.

Mui tos medicamentos utilizados com ou sem prescrição de um profissional de saúde têm o potencial de causar reações adversas na mucosa bucal e, por esta razão, torna-se necessário que os profissionais a saúde estejam conscientes dos possíveis efeitos indesejáveis causados por cada droga, possibilitando um diagnóstico correto, e a conduta clínica adequada a fim de tomar as medidas necessárias para poder minimizá-los. Apresentamos neste trabalho uma revisão sobre os medicamentos que mais comumente podem causar estas alterações bucais.

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