1/18. Soft tissue myxoma of the gingiva: report of a case and review of the literature of soft tissue myxoma in the oral region.Soft tissue myxoma of the oral cavity is extremely rare. We present a case of soft tissue myxoma arising from a mandibular anterior gingiva in a 51-year-old male patient. Histological examination showed islands of odontogenic epithelium scattered in the mucinous stroma. This lesion was supposed to have a odontogenic origin. The clinical differences between soft tissue myxoma with bone destruction and those without bone destruction are also discussed by a review of the literature.- - - - - - - - - - ranking = 1keywords = oral cavity, cavity (Clic here for more details about this article) |
2/18. Malignant odontogenic myxoma of the maxilla: case with cytogenetic confirmation.An odontogenic myxoma of the maxilla with an aggressive clinical course is presented. The tumour arose in a 53-year-old patient, recurred two times after extended maxillectomy and ultimately caused the patient's death by uncontrollable local disease with infiltration of the cranial cavity. Microscopically, the tumour showed histological features of a low grade malignant myxosarcoma with cellular areas, enhanced mitotic activity and nuclear pleomorphism. cytogenetic analysis revealed an unexpectedly aberrant hypertetraploid chromosome complement, that was considered as incompatible with the usual karyotypic patterns of benign tumours.- - - - - - - - - - ranking = 0.063125996949066keywords = cavity (Clic here for more details about this article) |
3/18. Cementifying fibroma in the ethmoidal sinus extending to the anterior cranial base in an 11-year-old girl: a case report.A case of an 11-year-old female with cementifying fibroma in the ethmoidal sinus extending to the anterior cranial base was presented. She complained of slowly progressive nasal obstruction and anosmia. magnetic resonance imaging (MRI) revealed a tumor in both ethmoidal and sphenoidal sinuses and nasal cavity. Although a tumor reduction surgery was attempted through a transnasal approach, tumor size increased gradually and right exophthalmos subsequently appeared. The pathological diagnosis was cementifying fibroma of the nose. Total tumor removal was consequently accomplished through the intracranial anterior transbasal approach. The surgical approach should be selected according to the site and expansion of the lesion in individual patients.- - - - - - - - - - ranking = 0.063125996949066keywords = cavity (Clic here for more details about this article) |
4/18. Odontogenic ghost cell carcinoma.BACKGROUND: Odontogenic ghost cell carcinoma (OGCC), a malignant counterpart of the calcifying odontogenic cyst (COC), is exceedingly rare. Previous descriptions of this tumor were based on identification of malignant histologic characteristics such as infiltration, cellular pleomorphism, numerous mitoses, and necrosis concurrent with classical benign COC or its solid benign variant, the odontogenic ghost cell tumor. methods: We present a case of a young Asian man who underwent multiple local excisions of a recurring maxillary COC. After one such excision, a rapid onset of painful swelling ensued, and the patient was referred to our institution for definitive surgery. RESULTS: The patient underwent a right subtotal maxillectomy. Intraoperatively, a 5-cm tumor was found to be extending into the right maxillary sinus and nasal cavity. The excised tumor was diagnosed as an OGCC. The tumor was excised with clear margins, and no adjunctive radiotherapy was given. The patient was free of residual or recurrent disease 18 months after surgery. CONCLUSION: On the basis of this case and prior cases found in the literature, OGCCs show a spectrum of growth from slow growing locally invasive tumors to highly aggressive, rapidly growing, infiltrative tumors. Wide local excision with histologically clean margins is the recommended mode of treatment. We recommend close long-term surveillance of recurrent or long-standing benign COCs and OGCC.- - - - - - - - - - ranking = 0.063125996949066keywords = cavity (Clic here for more details about this article) |
5/18. An electron and optical microscopic study of juxtaposed odontogenic keratocyst and carcinoma.Odontogenic keratocyst and squamous cell carcinoma commonly occur within the oral cavity; however, the juxtaposition of these lesions is rare. The light microscopic and ultrastructural features of such an event are reported. Although some morphologic similarities between the cyst and tumor were observed, definitive evidence of a common origin was not obtained.- - - - - - - - - - ranking = 1keywords = oral cavity, cavity (Clic here for more details about this article) |
6/18. Odontogenic tumor with combined characteristics of adenomatoid odontogenic and calcifying epithelial odontogenic tumors.A very rare odontogenic epithelial tumor with the combined characteristics of an adenomatoid odontogenic tumor (AOT) and calcifying epithelial odontogenic tumor (CEOT) was found in a 27 year old female. The histopathology, immunohistochemistry of keratin, lectin-binding patterns and distribution of carbonic anhydrase were determined. The nature of the calcified bodies was also examined biophysically. The tumor consisted of cuboidal and columnar odontogenic epithelial cells in the cystic wall, and AOT and CEOT in the central cavity. Odontogenic epithelial cells forming the cyst wall in the CEOT were positive for TK- and KL1-keratins, while that detected with PKK1 antibody was absent in the tumorous epithelium. Lectin binding of tumor epithelial cells was examined with concanavalin a (Con A), peanut agglutinin (PNA), soybean agglutinin (SBA), dolichos biflorus agglutinin (DBA), wheat germ agglutinin (WGA), ricinus communis agglutinin (RCA-I), and ulex europeus agglutinin I (UEA-I) lectins, and the tumor epithelium indicated existence of glucose, mannose, Gal, GalNAc, and GlcNAc residues. The lectin binding patterns of the calcified material showed an increased intensity by enzymatic pretreatments. With an electron probe X-ray microanalyser (EPMA), the calcified lesions gave a high peak for calcium ion and for phosphorus ion and a low one for magnesium ion, as obtained from line and surface analysis.- - - - - - - - - - ranking = 0.063125996949066keywords = cavity (Clic here for more details about this article) |
7/18. Primary intraosseous carcinoma involving the anterior mandible.A case is reported of a primary intraosseous carcinoma arising in the anterior mandible with metastasis to the submandibular lymph node in a 69 year-old Caucasian female. The patient initially presented with a burning sensation in the oral cavity in 1983, when no obvious pathological finding was noted; she returned 2 years later with a firm buccal swelling which had increased in size after the extraction of a mobile tooth. The tumour proved to be a primary intraosseous intraosseous carcinoma; extensive investigation did not reveal a primary carcinoma elsewhere.- - - - - - - - - - ranking = 1keywords = oral cavity, cavity (Clic here for more details about this article) |
8/18. The 'hybrid' fibro-osseous lesion.A hitherto unreported 'hybrid' fibro-osseous lesion involving the nasal cavity and sinuses is reported. This lesion histologically demonstrated features of ossifying fibroma, cementifying fibroma and aneurysmal cyst. Whilst appearing benign in nature it behaved in a neoplastic manner which necessitated complete surgical excision. A combined clinical, radiological and histopathological approach is advocated and discussed in relation to the treatment of these lesions.- - - - - - - - - - ranking = 0.063125996949066keywords = cavity (Clic here for more details about this article) |
9/18. cholesterol granuloma embedded in an odontoma of the maxilla.The cholesterol granuloma, a rare entity in the oral cavity, has been given little attention in the dental literature. As a result, there is a lack of accurate data regarding its nomenclature, pathogenesis, and histologic appearance. A new case of cholesterol granuloma in the oral cavity embedded in an odontoma is presented. The literature is reviewed and the nomenclature is clarified.- - - - - - - - - - ranking = 2keywords = oral cavity, cavity (Clic here for more details about this article) |
10/18. Calcifying epithelial odontogenic tumor (Pindborg tumor): an unusual case.A case of the rare calcifying epithelial odontogenic tumor is reported. The tumor was situated high in the left maxillary antrum, bulging into the nasal cavity. The presenting signs were homolateral nasal stenosis and bulging of the lateral nasal wall. The clinical appearances and histological findings are submitted and compared with those in cases described previously. Treatment and prognosis are discussed. From the present case it is apparent that despite its odontogenic nature the tumor may occur so far from the teeth that clinically it may be mistaken for a tumor of the nasal cavity.- - - - - - - - - - ranking = 0.12625199389813keywords = cavity (Clic here for more details about this article) |
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