نتایج جستجو برای: paranasal sinus neoplasms
تعداد نتایج: 535201 فیلتر نتایج به سال:
Reprint requests to: Dr. Yu-Chang Lee Department of Radiology E-Da Hospital/I-Shou University. No.1, Yi Da Road, Jiau-shu Tsuen, Yan-Chau, Kaohsiung 824, Taiwan, R.O.C. Schwannomas are common neoplasms in the head and neck region, but of these tumors only less than 4% was found in sinonasal location in the reported literature. Most of the reported cases are found in the maxillary or ethmoid sin...
BACKGROUND Currently, there is no uniform consensus regarding the appropriate staging for invasion of the paranasal sinuses in nasopharyngeal carcinoma (NPC). In the current AJCC staging system for NPC, paranasal sinus invasion is defined within the T3 classification. However, according to the Chinese 2008 staging system, which is also widely used in the regions where NPC is endemic in China, p...
Nasopharyngeal carcinoma (NPC) may spread to the paranasal sinuses. This retrospective study describes the features of paranasal sinus involvement in NPC on computed tomography (CT) and magnetic resonance imaging (MRI). One hundred and fourteen patients with histologically proven NPC underwent staging with both CT and MRI. Maxillary sinus infiltration was demonstrated on MRI in 10 patients; sph...
Introduction: Anatomic variations of the paranasal sinuses are very common. Paranasal sinus
Introduction: Anatomic variations of the paranasal sinuses are very common. Paranasal sinus
statement of problem: variation in paranasal sinus anatomy as shown on computed tomographic scans is of potential significance for it may pose risks during surgery or predispose to certain pathologic conditions. purpose: the aim of this study was to assess the relative frequency and concurrence of variations in paranasal sinus anatomy in a given population and to compare the results with previo...
BACKGROUND Inadequate epidemiologic investigations of the paranasal sinuses malignancies prompted this retrospective study with special emphasis on a major group of 111 tumors. MATERIAL AND METHODS Clinical records of 111 patients with histologically confirmed malignant tumors of the paranasal sinuses were investigated retrospectively from April 2000 to January 2012. Collection of data includ...
Background: Paranasal sinus disease is one of the most common problems of patients that refer to ENT centers. Adding to clinical examination imaging plays an important role in diagnosis and treatment. Also the imaging of paranasal sinuses is necessary before surgery. Although computed tomography is the modality of choice for these areas, it has some disadvantages which the most important one is...
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