نتایج جستجو برای: paranasal
تعداد نتایج: 3523 فیلتر نتایج به سال:
introduction: myxofibrosarcoma was originally described as the myxoid variant of malignant fibrous histiocytoma (mfh), a high-grade and aggressive sarcoma, which is very uncommon in the head and neck region, with about 100 cases reported up to now. mfh occurring in the maxillary sinus is so rare that only 23 cases have been reported. we hereby report a case of myxofibrosarcoma in the maxillary ...
introduction frontal sinus mucoceles are the commonest among all paranasal mucoceles. with introduction of functional endoscopic sinus surgery, surgeons prefer endoscopic management of sinus mucoceles, but lesions that appear in the lateral part of the frontal sinus can be difficult to access and often need external approaches. case presentation we described a lateral frontal sinus mucocele wit...
introduction a mucocele is an epithelial-lined, mucus-containing sac that can fill the sinus completely and expand gradually. mucopyocele is an infected mucocele. case report we presented a case of left maxillary mucopyocele in a 58-year-old man that developed after radiotherapy for nasopharyngeal carcinoma. computed tomography scan showed opacification of the left maxillary sinus expanding thr...
background and objective: chronic rhinosinusitis (crs) is one of the most common chronic diseases. in the past decades, there has been an increase in fungal infections of sinuses and fungal rhinosinusitis (frs) has been diagnosed more frequently. knowing the fungal flora and its prevalence in crs patients will allow a better understanding of this disease, permitting a correct diagnosis, treatme...
Chordomas are malignant, nonepithelial neoplasms derived from notochordal tissue. A primary chordoma of the nasal cavities and paranasal sinuses is extremely rare compared with clival chordomas, which often present as nasal masses after spreading anteriorly. Only a few cases of primary chordoma of the nasal cavities and paranasal sinuses have been reported in the literature. We report a case of...
Intracranial invasion of paranasal sinusitis is an emergency condition that requires surgical and medical intervention in order to avoid further deterioration. We surveyed patients at the Buddhist Tzu Chi Hospital (Hualien, Taiwan) who had paranasal sinusitis with intracranial invasion. A total of 505 patients with paranasal sinusitis were surveyed at Hualien Buddhist Tzu Chi Hospital over a 14...
aggressive malignancy arising from the nasal cavity and paranasal sinuses. Sinonasal undifferentiated carcinoma was first reported in 1986 by Frierson et al, and since then less than 100 cases have been reported in the literature.1 One previous pediatric case has been described in a 12-year-old boy in India.2 Sinonasal undifferentiated carcinoma is histologically classified as part of a spectru...
Consecutive coronal CT scans of the paranasal sinus and radiologic medical records of patients examined at Wilford Hall USAF Medical Center from July 1987 through December 1988 were reviewed for the presence of pneumatization of the uncinate process. Patients with previous alteration of the anatomy of the paranasal sinus due to facial trauma, carcinoma of the paranasal sinus , inverted papillom...
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