1/49. Giant benign sinonasal squamous papilloma: report of a case.We treated a patient with a giant squamous papilloma in the nasal cavity and maxillary sinus that extended through a bony defect into the oral cavity. The mass was excised with a combined endoscopic, Caldwell-Luc, and transoral approach. Lesions of this type are rare, but when they do occur, the rate of recurrence is high. Therefore, long-term followup, including endoscopic examination, is important.- - - - - - - - - - ranking = 1keywords = oral cavity, cavity (Clic here for more details about this article) |
2/49. skin grafts used in combination with free flaps for intraoral oncological reconstruction.Surgeons have relied less on skin grafts for intraoral reconstruction by extending free flap tissue onto adjacent areas that could be potentially skin grafted. Split-thickness skin grafts provide thin, reliable epithelial coverage to tissue beds that can be grafted without requiring additional flap tissue. The combined use of split-thickness skin grafts with free tissue transfer may be advantageous in select situations. Four patients underwent intraoral tumor resection with immediate reconstruction using free tissue transfer and split-thickness skin grafts. skin grafting the tongue component of combined hemiglossectomy and floor-of-mouth (FOM) defects rather than spanning the tongue-FOM junction with flap tissue may prevent excessive bulk, improve tongue mobility, and reduce the size requirement of the flap. A split-thickness skin graft can be applied to the intraoral surface of free flaps used to reconstruct through-and-through orocutaneous defects, reducing the complexity of flap design and inset. Maxillectomy defects reconstructed with muscle flaps can be epithelialized immediately with the application of a split-thickness skin graft to provide a stable obturator cavity. In select cases, the combination of split-thickness skin grafts and free tissue transfer may have advantages over the use of flap tissue alone to cover the adjacent areas of a complex defect capable of being grafted.- - - - - - - - - - ranking = 0.16544318842161keywords = cavity, mouth (Clic here for more details about this article) |
3/49. A rare case of carcinosarcoma of the maxillary sinus with osteosarcomatous differentiation.A unique case of carcinosarcoma in the maxillary sinus is reported. A 47-year-old man visited our hospital with complaints of right nasal obstruction and bloody rhinorrhea. Examination revealed a hemorrhagic mass with necrosis in the maxillary sinus that infiltrated the right nasal cavity. Histologically, the tumor was composed of both carcinomatous and sarcomatous elements. Nests of squamous cell carcinoma and adenocarcinoma were scattered in the sarcomatous element with osteosarcomatous differentiation. No distinct demarcation between the two elements was observed and some spindle-shaped cells in the sarcomatous component were immunoreactive to epithelial markers by immunohistochemical staining. Although the histogenesis of carcinosarcoma remains unclear, the histologic pattern of the present case indicates the possibility that a multipotential cell, capable of both epithelial and mesenchymal differentiation, was the origin of the rare tumor.- - - - - - - - - - ranking = 0.15597170256804keywords = cavity (Clic here for more details about this article) |
4/49. A pivoting appliance for intracavitary brachytherapy in patients with reduced mouth opening.PURPOSE: The risks of radiotherapy to normal tissues are well known. In many cases, a tumor patient suffering a relapse cannot undergo radiotherapy a second time. One exception may be the local application of brachytherapy. Afterloading devices allow the position of radiating materials near the site for treatment exactly according to three-dimensional treatment planning. This report shows the technical procedure for the fabrication of an intracavitary afterloading radiation device. MATERIALS AND methods: A 48-year-old woman who had received neutron radiotherapy and tumor surgery for adenoid cystic carcinoma had to be treated for relapse. The mouth opening was limited to 15 mm. The mixing tip of a silicone impression system was used as an axis for a pivoting appliance. RESULTS: Two years after reradiation, the patient was free of relapse symptoms, although an increased limitation of mouth opening was recorded. CONCLUSION: Even if the mouth opening is severely limited after tumor surgery and/or radiation, intracavitary brachytherapy still can be performed in edentulous patients using a pivoting device.- - - - - - - - - - ranking = 0.066300400974997keywords = mouth (Clic here for more details about this article) |
5/49. Primary neuroblastoma of the maxillary sinus.Although neuroblastoma is the most common of extracranial solid tumors of childhood and infancy, we report the first case of an isolated neuroblastoma of a paranasal sinus. A 15-year-old girl with a right maxillary sinus mass was asymptomatic except for persistent epiphora. Computed tomography and magnetic resonance imaging scans showed that the mass extended into the nasal cavity, encroached on the lamina papyracea, and obstructed the nasofrontal duct. An extensive workup revealed no evidence of systemic disease. The patient underwent right craniofacial resection. immunohistochemistry and electronmicroscopic findings were consistent with conventional neuroblastoma. fluorescence in situ hybridization analysis was performed with probes selected to demonstrate genetic alterations associated with neuroblastoma. Studies revealed deletion of chromosome arm 1p, gain of chromosome 17, and normal N-myc gene copy number. In summary, the tumor exhibited morphologic features and genetic alterations more consistent with those of neuroblastoma than with those of esthesioneuroblastoma.- - - - - - - - - - ranking = 0.15597170256804keywords = cavity (Clic here for more details about this article) |
6/49. Cystic schwannoma of the maxillary sinus.OBJECTIVE: Although 25-45% of all schwannomas are reported to occur in the head and neck region, nasal cavity and paranasal sinus involvement is rare, with 32 such cases described till 1999. Of these cases, only three were cystic. Herein we present a cystic schwannoma of the maxillary sinus of a 66-year-old, otherwise healthy male patient. methods: The tumor tissue was routinely processed, embedded in paraffin, and stained with H&E. Immunostaining was performed for S-100 protein, epithelial membrane antigen (EMA) and cytokeratin. RESULTS: A mass with sudden enlargement, inhomogeneous enhancement with cystic areas, S-100 positive membrane-like structures lining the cystic cavity of an otherwise classical schwannoma were the main features encountered in our case. CONCLUSION: We recommend that cystic schwannoma should be kept in mind in the differential diagnosis of cystic masses of the maxilla.- - - - - - - - - - ranking = 0.31194340513609keywords = cavity (Clic here for more details about this article) |
7/49. High dose rate treatment of a maxillary sarcomatoid carcinoma: a case report.A 37-year old Native American woman presented with a rare sarcomatoid carcinoma of the left maxilla. She underwent extensive resection, but developed an orbital cavity recurrence. This was treated with external beam radiation therapy. The boost posed dosimetric difficulties due to the anatomic peculiarities of the treatment area. Extensive treatment planning for a high dose rate iridium 192 source helped overcome these problems. Control of the tumor was achieved in the site of recurrence.- - - - - - - - - - ranking = 0.15597170256804keywords = cavity (Clic here for more details about this article) |
8/49. A non-Hodgkin's lymphoma in the buccal mucosa. A case report.Non-Hodgkin's lymphomas are tumors of the immune system that uncommonly evolve as primary lesions of the oral cavity. A case of a primary lymphoma in the right cheek that had invaded the surrounding tissues is presented.- - - - - - - - - - ranking = 0.84402829743196keywords = oral cavity, cavity (Clic here for more details about this article) |
9/49. Unusual presentation of verrucous carcinoma of maxillary antrum.Verrucous carcinoma is a rare type of squamous cell carcinoma that is most often seen in the oral cavity and larynx. This paper describes a case report of a rare tumor with an unusual presentation. This patient presented with recurrent pyoceles and was diagnosed by chance. Carcinoma of maxilla is rarely diagnosed until the bony walls are eroded. This condition should be kept in mind in patients presenting with recurrent pyocele and a biopsy carried out from the maxilla.- - - - - - - - - - ranking = 0.84402829743196keywords = oral cavity, cavity (Clic here for more details about this article) |
10/49. Clear cell adenocarcinoma of the maxillary sinus: a case report.A variety of salivary gland tumours histologically show the presence of clear cells. Clear cell adenocarcinoma of salivary glands (CCASG) is a distinct clinico-pathologic entity arising in the minor salivary glands of mainly the oral cavity in elderly women and having a low grade malignant potential. A case occurring in the maxillary sinus and extending to the nasal cavity is reported.- - - - - - - - - - ranking = 1keywords = oral cavity, cavity (Clic here for more details about this article) |
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