Laura Priscila Barboza De Carvalho

Pediatric fibromatosis involving mandible: case reportand a five-year post-operative follow-up

Fibromatose extra-abdominal e uma neoplasia fibrosa benigna, caracterizada por comportamento agressivo local. Geralmente, o tratamento de escolha consiste na excisao cirurgica com ampla margem de seguranca. O objetivo deste trabalho e relatar um caso de fibromatose em uma paciente de 11 anos, melanoderma, que apresenta aumento de volume na mandibula do lado direito. A partir do diagnostico histopatologico inicial sugestivo de lesao benigna de origem neural, foi realizado tratamento cirurgico conservador. Um novo exame anatomopatologico da peca cirurgica foi compativel com fibromatose. A paciente encontra-se sob controle periodico de cinco anos da cirurgia, nao havendo recorrencia clinica da lesao

Calcifying Epithelial Odontogenic Tumor

The calcifying epithelial odontogenic tumor (CEOT) is a rare benign epithelial odontogenic neoplasm of slow growth that is locally aggressive and tends to invade bone and adjacent soft tissue. Here is reported the case of a 21-year-old female patient with a CEOT in the left mandibular posterior region. The computerized tomography in coronal plane revealed a hypodense lesion in the posterior region of the left mandibular body with hyperdense areas inside and was associated with element 37. An incisional biopsy of the lesion was performed and the histopathological analysis revealed the presence of layers of epithelial odontogenic cells that formed prominent intercellular bridges. A large quantity of extracellular, eosinophilic, and amyloid-like material and an occasional formation of concentric calcifications (Liesegang rings) were also found. The histopathological diagnosis was a Pindborg tumor. Resection of the tumor with a safety margin was performed and after 6 months of follow-up there has been no sign of recurrence of the lesion.