RESUMO
The keratocystic odontogenic tumour (KCOT), formerly known as the odontogenic keratocyst (OKC) is a benign intraosseous lesion that derives from remnants of the dental lamina. Due to its characteristics, clinical and histopathological features and various treatment approaches, this pathology is different comparing with other odontogenic cysts. Radiographically the KCOT appears as well-defined unilocular or multilocular radiolucency with thin radiopaque borders. In most cases, conventional radiographic imaging, such as panoramic views and intraoral periapical films, are adequate to determine the location and estimate the size of an KCOT. However, the clinical use for cone-beam computed tomography (CBCT) in oral and maxillofacial surgery increases and provides additional information about the contents and borders of the large lesions. In the present cases, the diagnostic performances of CBCT versus panoramic radiograph for four KCOTs were evaluated. It was concluded that appearance of lesions in the maxillofacial region could be better documented in the correct dimensions by CBCT versus panoramic radiograph (AU)
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Assuntos
Humanos , Tumores Odontogênicos/diagnóstico , Tomografia Computadorizada de Feixe Cônico/métodos , Cistos Odontogênicos/diagnóstico , Imageamento Tridimensional , Radiografia PanorâmicaRESUMO
The keratocystic odontogenic tumour (KCOT), formerly known as the odontogenic keratocyst (OKC) is a benign intraosseous lesion that derives from remnants of the dental lamina. Due to its characteristics, clinical and histopathological features and various treatment approaches, this pathology is different comparing with other odontogenic cysts. Radiographically the KCOT appears as well-defined unilocular or multilocular radiolucency with thin radiopaque borders. In most cases, conventional radiographic imaging, such as panoramic views and intraoral periapical films, are adequate to determine the location and estimate the size of an KCOT. However, the clinical use for cone-beam computed tomography (CBCT) in oral and maxillofacial surgery increases and provides additional information about the contents and borders of the large lesions. In the present cases, the diagnostic performances of CBCT versus panoramic radiograph for four KCOTs were evaluated. It was concluded that appearance of lesions in the maxillofacial region could be better documented in the correct dimensions by CBCT versus panoramic radiograph.
Assuntos
Tomografia Computadorizada de Feixe Cônico , Imageamento Tridimensional , Doenças Maxilomandibulares/diagnóstico por imagem , Neoplasias Maxilomandibulares/diagnóstico por imagem , Cistos Odontogênicos/diagnóstico por imagem , Tumores Odontogênicos/diagnóstico por imagem , Adulto , Tomografia Computadorizada de Feixe Cônico/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto JovemRESUMO
Angiofibrolipoma is a rare histopathological variant of lipoma, characterized by mature adipocytes, blood vessels and dense collagenous tissue. It is seldom seen in the oral and maxillofacial region. Clinically, as it shares macroscopic similarity with lipoma and fibroma, the diagnosis of angiofibrolipoma is only possible based on its histopathological features. The aim of this report is to present an unusual case of a 59-year-old female patient, who reported a pathological soft mass in the buccal mucosa of the left cheek which was present for 20 years. After excisional biopsy and histopathological evaluation of the sample, the diagnosis of angiofibrolipoma was made.
Assuntos
Angiofibroma/patologia , Angiolipoma/patologia , Mucosa Bucal/patologia , Neoplasias Bucais/patologia , Feminino , Humanos , Pessoa de Meia-IdadeRESUMO
Iatrogenic complications in endodontics are not irrelevant. One of the most seen is overfilling of the root canal, which has a negative effect on prognosis for endodontically treated teeth. Although more than a half of the overfilled teeth heal satisfactorily after proper endodontic therapy, in some cases, such as injury of the inferior alveolar nerve or presence of filling material in soft tissues or sinus spaces, surgical procedure is more suitable and effective. The purpose of this article is to present 2 clinical cases of iatrogenic complications of endodontically treated teeth and the approach to them by surgical procedure. In the first case, extruded endodontic filling material was present in the periapical region of lower second premolar tooth causing anesthesia of the mental nerve; in the second case, extruded material was found to have perforated the cortical bone of maxilla and passed through the mucoperiosteum to the muscle fibers.
