RESUMO
Actinomyces-associated lesions in the jaw, such as radicular cyst and osteomyelitis, have been reported by many authors. The lesions are caused by infection from peripheral sites and can be seen to contain Actinomyces druses on pathologic examination. To our knowledge, no previous reports have described Actinomyces-associated calcification in the jaw, although the lesions in the jaw often include druses. We report here a rare case of Actinomyces-associated calcifications in a dentigerous cyst of the mandible.
Assuntos
Actinomicose/diagnóstico , Calcinose/microbiologia , Cisto Dentígero/microbiologia , Doenças Mandibulares/microbiologia , Perda do Osso Alveolar/microbiologia , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Dente Molar/microbiologia , Dente Serotino/microbiologia , Periodontite/microbiologia , Dente Impactado/microbiologiaAssuntos
Corpos Estranhos/prevenção & controle , Maxila/cirurgia , Seio Maxilar/patologia , Dente Serotino/cirurgia , Extração Dentária/métodos , Dente Impactado/cirurgia , Gengiva/cirurgia , Humanos , Segurança , Retalhos Cirúrgicos/cirurgia , Coroa do Dente/cirurgia , Extração Dentária/instrumentaçãoRESUMO
OBJECTIVE: This paper describes a case of secondary mandibular bone reconstruction performed to place dental implants. Osteosynthesis and simultaneous irregular trifocal distraction osteogenesis were documented. PATIENT: The patient was a 51-year-old man with recurrent ameloblastoma of the mandible. Segmental mandibulectomy for tumor ablation and immediate mandibular reconstruction were performed. Because the volume of reconstructed bone was insufficient to place dental implants, trifocal distraction osteogenesis (vertical and horizontal distraction osteogenesis) was performed. Because the mandible had lost its continuity, osteosynthesis was performed simultaneously. RESULTS: Through this procedure, the bone was well augmented. Absorption of the distracted bone was not seen. Adequate-length implants were placed. CONCLUSION: Irregular trifocal distraction osteogenesis synchronized with osteosynthesis shortened the treatment period and produced stable bone augmentation for placement of dental implants. Therefore, this procedure could be indicated for complicated segmental mandibular bone defects.
Assuntos
Aumento do Rebordo Alveolar/métodos , Mandíbula/cirurgia , Osteogênese por Distração/instrumentação , Procedimentos de Cirurgia Plástica/métodos , Ameloblastoma/cirurgia , Placas Ósseas , Reabsorção Óssea , Transplante Ósseo/efeitos adversos , Implantação Dentária Endóssea , Falha de Equipamento , Fixadores Externos , Humanos , Técnicas de Fixação da Arcada Osseodentária , Masculino , Fraturas Mandibulares/cirurgia , Neoplasias Mandibulares/cirurgia , Pessoa de Meia-Idade , Osteogênese por Distração/métodos , Procedimentos de Cirurgia Plástica/instrumentaçãoRESUMO
Salivary duct carcinoma (SDC) is a distinctive and aggressive neoplasm. The most frequent site of origin is the parotid gland, followed by the submandibular gland. SDC originating in the minor salivary glands, particularly in the ectopic glands within the mandible, is extremely rare. We describe a 62-year-old man with SDC in the mandible, who presented with a painless lump in the right submandibular region (later identified as lymph node metastasis) and ipsilateral mental nerve palsy. Histologic examination after ablative surgery revealed SDC originating in the mandible and cervical nodal metastases spreading to levels I-III. The patient remains alive 59 months after presentation as a result of postoperative full-dose irradiation and regular intensive chemotherapy using TXT, 5-FU, and CDDP. However, the patient has local recurrence and distant metastases to the lung and brain. In this report, we also discuss the specific diagnostic criteria and developmental theories of intraosseous salivary gland tumors.