نتایج جستجو برای: skull base meningiomas
تعداد نتایج: 271025 فیلتر نتایج به سال:
MR imaging of 15 paragangliomas in 10 patients was compared with CT of 13 of the lesions in eight patients. All lesions were confirmed with angiography. All lesions were detected by MR and CT with the exception of one small glomus tympanicum tumor that was seen only in retrospect with MR. CT better demonstrated subtle osseous changes of the skull base and the relation of the tumor to the middle...
The skull base is one of the most complex anatomical regions and forms the floor of the cranial cavity. Skull base surgery involves open, microscopic, and endoscopic approaches to the anterior, middle, or posterior cranial fossa. A multispecialty team approach is essential in treating patients with skull base lesions. Traditionally, rhinologists are involved in providing access to anterior skul...
Introduction: Skull-based osteomyelitis is bony infection which generally originates from inadequately treated chronic infection, adjoining tissue infection or after trauma.Case: 11 month female child had a trivial fall while standing near a bucket. The child developed fracture of right clavicle and left orbital swelling which was inadequately treated. This resulted in in spread of infection to...
Introduction: Traditionally, the vast majority of meningiomas have been benign lesions with a low propensity for regrowth or spread following gross total removal. Over the past five years, our center has encountered a sharp increase in the percentage of meningiomas with pathological evidence of atypical or malignant features. This report addresses our growing experience with this entity. Method...
BACKGROUND Many meningiomas are identified by imaging and followed, with an assumption that they are WHO Grade I tumors. The purpose of our investigation is to find clinical or imaging predictors of WHO Grade II/III tumors to distinguish them from Grade I meningiomas. METHODS Patients with a pathologic diagnosis of meningioma from 2002-2009 were included if they had pre-operative MRI studies ...
The rationale for interstitial irradiation of tumours in and around the skull base is reviewed, and the experience accumulated with pituitary adenomas, meningiomas, and chordomas is summarized. Intracystic irradiation for craniopharyngiomas is also reviewed. RESUME: Irradiation interstitielle des tumeurs de la base du crane Nous passons en revue la raison d'etre de 1'irradiation interstitielle ...
several lesions (inflammatory, neoplastic and congenital) can involve in the skull base. the role of imaging is to detect the location and extension of lesion, determine mass and mass like lesions, differentiate benign from malignant tumors, detect invasion to adjacent structures and make decision in surgical planning. skull base divides to anterior, middle and posterior cranial fossa and some ...
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