1/64. ameloblastoma of the maxilla. Case report.A basal cell maxillary ameloblastoma became obvious as an asymptomatic swelling of the left buccal sulcus and alveolar process, although a large extension into the maxillary sinus up to the nasal conchae and the orbital floor had already occurred. The painless and slow growth of the lesion, the thin bone of the upper jaws, the adjacent cavities and the vital structures are the main factors for delay in recognition and thus the potentially lethal result of a maxillary ameloblastoma. A review of location, age, sex and race predilection, clinical course, radiographic appearance, histological types and treatment methods in made.- - - - - - - - - - ranking = 1keywords = jaw (Clic here for more details about this article) |
2/64. Intraosseous epithelioid hemangioendothelioma of the mandible: a case report with an immunohistochemical study.Epithelioid hemangioma is the prototype of a group of vascular tumors characterized by epithelioid endothelial cells. hemangioendothelioma of bone is a rare lesion that constitutes less than 0.5% of primary malignant skeletal tumors. We report and discuss a case of epithelioid hemangioendothelioma arising intraosseously in the anterior portion of the mandible in a 76-year-old woman. The case was treated successfully by wide resection. Radiographically, the tumor mass showed osteolysis and expansion. Histologically, the tumor showed invasive and destructive growth, although it lacked frequent mitotic figures and severe atypia. On immunohistochemical study, tumor cells exhibited characteristics of mesenchymal and endothelial origin, i.e., strong to moderate immune reactivity against vimentin, factor viii-related antigen (F8RA), ulex europaeus agglutinin type 1 lectin (UEA-1), and CD 34, but not against keratin, epithelial membrane antigen (EMA) or S-100 protein (S100). The proliferating cell nuclear antigen (PCNA)-positive cell index was 27.5%. These pathological findings suggested a borderline malignant potential for this tumor. Thus, clinically, wide resection with or without dissection of regional lymph nodes is recommended.- - - - - - - - - - ranking = 174.05501704296keywords = mandible (Clic here for more details about this article) |
3/64. role of radical surgery for intracranial melanotic neuroectodermal tumor of infancy: case report.OBJECTIVE AND IMPORTANCE: Melanotic neuroectodermal tumor of infancy (MNTI) is a rare, locally aggressive tumor that arises most commonly from the maxilla or mandible. Infrequently, it originates from the cranial vault, and recent reports have described a favorable outcome after radical surgery. Some lesions are particularly problematic, such as those located along the cranial midline or cranial base and those with significant intracranial extension. Currently, there is no effective adjuvant therapy for MNTI; radiation is precluded by the patients' young age, and chemotherapy trials have not demonstrated long-term efficacy. CLINICAL PRESENTATION: A 2-month-old infant boy presented with a firm, immobile subcutaneous mass behind the right ear. The mass had been present at birth and enlarged with time. INTERVENTION: Initial resective surgery down to the dura resulted in massive tumor recurrence within weeks. Successful management required repeat surgery including excision of the dura and dural venous sinuses. CONCLUSION: This patient's large MNTI of the cranial base was successfully managed by radical surgery. Although MNTI is a rapidly growing tumor that is locally highly invasive, radical surgery may be associated with a favorable outcome and offers the potential for long-term cure.- - - - - - - - - - ranking = 34.811003408591keywords = mandible (Clic here for more details about this article) |
4/64. Burkitt's lymphoma presenting as mandibular swelling--report of a case and review of publications.Burkitt's lymphoma in a 4-year-old Chinese boy presented with acute mandibular swelling but no associated systemic disturbance. A review of published reports shows that the diagnosis should be suspected in jaw lesions with no obvious cause.- - - - - - - - - - ranking = 1keywords = jaw (Clic here for more details about this article) |
5/64. The use of intensity modulated radiotherapy for the treatment of extensive and recurrent juvenile angiofibroma.These case series are presented to describe the application and advantages of intensity modulated radiotherapy (IMRT) for the treatment of extensive and/or recurrent juvenile angiofibroma. Two patients were diagnosed with recurrence at 11 and 13 months postoperatively, and one was surgically unresectable. The affected areas included the base of skull, cavernous sinus, pterygopalatine fossa, infratemporal fossa, posterior orbit and nasopharynx. Highly conformal IMRT was delivered with limited radiation doses to the optic nerves, optic chiasm, brainstem, brain, spinal cord, lens, retina, mandible, and parotid. The total dose delivered to the tumor varied from 3400 to 4500 cGy. The tumor shrunk radiographically in all three cases and there was no endoscopic evidence of disease in two cases at 15 months and 40 months. There was no acute toxicity. Late toxicity was limited to one episode of epistaxis and persistent rhinitis in one patient. In conclusion, IMRT provides several advantages over conventional radiotherapy in the treatment of recurrent juvenile angiofibroma.- - - - - - - - - - ranking = 34.811003408591keywords = mandible (Clic here for more details about this article) |
6/64. Calcifying epithelial odontogenic tumor with intracranial extension: report of a case and review of the literature.The calcifying epithelial odontogenic tumor (CEOT) is a rare benign neoplasm, possibly of stratum intermedium origin and occurring predominantly in the mandible of adults. The treatment varies, depending on its size, location, and histology. A case of an advanced CEOT arising in the maxilla with intracranial extension is reported. The report is supplemented by a review of the literature.- - - - - - - - - - ranking = 34.811003408591keywords = mandible (Clic here for more details about this article) |
7/64. Aggressive epithelial odontogenic ghost cell tumor in the mandible: CT and MR imaging findings.We report a case of aggressive epithelial odontogenic ghost cell tumor arising from the mandible in a 32-year-old man. On CT and MR studies, the tumor was seen as a large, heterogeneous soft-tissue mass that caused marked destruction of the mandible and invaded the mouth floor and tongue base. The tumor displayed a variety of densities and signal intensities on CT and MR images, which correlated well with the degree of cellularity of epithelial islands, abundance of ghost cells and eosinophilic materials, calcification, and cystic areas on histologic sections. Owing to the unpredictable biological behavior of this type of tumor, careful, long-term follow-up is highly recommended.- - - - - - - - - - ranking = 208.86602045155keywords = mandible (Clic here for more details about this article) |
8/64. Invading basal cell carcinoma of the jaw: an under-evaluated complex entity.Basal cell carcinoma (BCC) is a locally invasive neoplasm, rarely metastatic, yet capable of significant local destruction and disfigurement. Invasion into the bone is uncommon and only a few cases of invasion into facial bones, but never to the mandible or maxilla, have been described. We report three patients with BCC lesions invading their jaws, as a consequence of which either their mandible or maxilla had to be partially resected. This resulted in facial mutilation which required comprehensive multi-disciplinary therapy to restore function and esthetics. Such therapy requires a combination of modalities offered by both plastic and maxillofacial surgeons, as well as oral and dental rehabilitators.- - - - - - - - - - ranking = 74.622006817183keywords = mandible, jaw (Clic here for more details about this article) |
9/64. Intraosseous hemangioma of the zygoma: CT and MR findings.Intraosseous hemangiomas are uncommon, constituting less than 1% of all osseous tumors. The most frequent sites are the calvaria and the vertebral column. Involvement of the facial bones is rare, and occurs most commonly in the maxilla, mandible, and nasal bones. Only 20 cases of zygomatic involvement have been reported in the English-language literature. We report a case of an intraosseous hemangioma of the zygoma documented by CT and MR studies.- - - - - - - - - - ranking = 34.811003408591keywords = mandible (Clic here for more details about this article) |
10/64. Multiple cemento-ossifying fibroma: report of an 18-year follow-up.Multiple cemento-ossifying fibroma is a very rare jaw lesion. A unique case is reported involving a 43-year-old Korean woman with rapidly growing, multiple cemento-ossifying fibromas in all four quadrants over an 18-year period which resulted in severe facial deformity and orbital compression.- - - - - - - - - - ranking = 1keywords = jaw (Clic here for more details about this article) |
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