Cases reported "Maxillary Neoplasms"

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1/798. Adenomatoid odontogenic tumor arising in a dental cyst: report of unusual case.

    The case of an adenomatoid odontogenic tumor developing over a dentigerous cyst is reported. A 12-year-old boy was referred by his pediatric dentist to the service of Oral and Maxillofacial Surgery of the Asturias Central Hospital (spain) for evaluation of a radiolucent image compatible with a dentigerous cyst. Microscopic examination revealed the presence of an adenomatoid odontogenic tumor located over the linear epithelium of a dentigerous cyst. Based on the literature, the clinico-pathological, diagnostic, radiological and therapeutic characteristics of the case are commented in detail. ( info)

2/798. Fibrodysplasia ossificans progressiva and associated osteochondroma of the coronoid process in a child.

    The article reports the occurrence of osteochondroma in a fibrodysplasia ossificans progressiva patient. A 5-year-old boy presented with limited mouth opening and firm swelling of the right zygomatic complex area. The boy had bilateral hallux valgus of the great toes and heterotopic endochondral ossification of facial and neck regions. Associated osteochondroma of the coronoid process and aggressive heterotopic ossification of masticatory and neck muscles were found in response to traumatic injuries. Natural and clinical histories of fibrodysplasia ossificans progressiva were reviewed. An early diagnosis and avoidance of factors that aggravate ossification are key factors in reducing the expected degree of physical disabilities of patients. An early recognition of congenital skeletal deformities, early detection of abnormal ossification, and awareness of the disease by the involved physicians are important factors in the early diagnosis of the disease and in reducing any unnecessary trauma. Bone scintigrams and CT scans are effective noninvasive tools for an early detection of ossification and for monitoring the progression of the disease. Further investigation of its pathogenesis at a molecular level is important to understand better the nature of the disease and to develop an effective treatment protocol. ( info)

3/798. Functional reconstruction after a total maxillectomy using a fibula osteocutaneous flap with osseointegrated implants.

    The fibula osteocutaneous flap with osseointegrated implants was used for reconstruction of a total maxillectomy defect. We have achieved satisfactory reconstruction of three-dimensional facial structure, orbit support, and a functional prosthesis. Our procedure restored the patient's masticatory function of the maxilla and enabled good speech and a natural facial appearance. A very high quality of function was obtained without any complications, but long-term follow-up is necessary for maintenance of the implants. ( info)

4/798. A case of metastasizing pleomorphic adenoma.

    The pleomorphic adenoma is the most common benign salivary neoplasm. A case is presented in which a palatal pleomorphic adenoma seeded a metastasis in the medullary cavity of the anterior maxilla, apparently by hematogenous spread after surgical manipulation. ( info)

5/798. Bizarre parosteal osteochondromatous proliferation in the anterior maxilla: report of a case.

    Bizarre parosteal osteochondromatous proliferations are a rare subgroup of the osteochondromatous lesions. They must be differentiated from reactive osteochondromatous proliferations, low grade parosteal osteogenic sarcoma, and chondrosarcoma. Their recognition is important from the point of view of management, which should be by simple excision. This article describes a case of bizarre parosteal osteochondromatous proliferation in a 2-year-old child; the lesion developed in the anterior maxilla, a previously unreported site. ( info)

6/798. Intra- and extraoral prostheses using osseointegrated implants after maxillofacial surgery.

    Maxillary and orbital defects due to the resection of maxillary tumors in six cases were treated utilizing maxillofacial prostheses employing pure titanium osseointegrated implants (Branemark system). A total of 17 fixtures were installed in the maxillary region, and 16 achieved osseointegration. For the orbital region, nine fixtures were installed, and all fixtures integrated well. Using these fixtures as anchors, four maxillary prostheses and three orbital prostheses were set. The stability of the prostheses were improved by anchors, and the prostheses were highly satisfactory to the patients. ( info)

7/798. Malignant ameloblastoma of the maxilla.

    This case illustrates a rare occurrence of an ameloblastoma arising in the maxilla and metastasizing to the neck and lungs within a three-year period following the initial resection. A discussion of the pathology is presented and the necessity for aggressive initial therapy with close follow-up is emphasized. ( info)

8/798. Malignant fibrous histiocytoma of the maxilla: a case report.

    Malignant fibrous histiocytoma is one of the most common sarcomas of soft tissues in late adult life. However, this neoplasm rarely arises in the oral and maxillofacial region with the maxilla presenting as an unusual site. A case report of a 40-year old woman with malignant fibrous histiocytoma involving the maxilla is discussed with relevant literature reviewed. The treatment chosen was partial maxillectomy. The patient was referred for cobalt therapy after surgery. Eight months after diagnosis, the patient died of the illness. ( info)

9/798. Prenatal sonographic features of embryonal rhabdomyosarcoma.

    We describe a case of fetal rhabdomyosarcoma detected during the third trimester of pregnancy by prenatal sonography. At 33 weeks' gestation, sonography performed because of suspected polyhydramnios showed a solid mass of 120 x 54 mm arising from the anterior wall of the fetal thoracic cage. Another mass within the left maxillary area which originated from the left orbital floor was also detected. In the abdomen, there were multiple round masses in and around the liver. As the previous scan at 28 weeks had appeared normal, the multiple masses which became visible and enlarged rapidly in different locations led us to believe that there was fetal cancer. The most likely diagnosis was rhabdomyosarcoma (which was later confirmed), because it is the most prevalent soft-tissue tumor in children and may develop within or outside muscle anywhere in the body and at any age. Two other reported cases which were detected by prenatal ultrasound examination are also discussed. ( info)

10/798. Delayed eruption of maxillary primary cuspid associated with compound odontoma.

    Impaction of primary teeth is very rare especially in the maxillary anterior teeth. A four-year-old male child with the complaint of delayed eruption of right maxillary primary cuspid due to the presence of odontoma is presented. ( info)
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