نتایج جستجو برای: spinal tumors
تعداد نتایج: 290702 فیلتر نتایج به سال:
Primary spinal cord tumors constitute 2% to 4% of all central nervous system neoplasms and are characterized based on their location as intramedullary, intradural extramedullary, and extradural. A contemporary literature review of primary intradural spinal cord tumors was performed. Among intramedullary tumors, ependymomas are more common and often can be surgically resected. However, astrocyto...
Spinal meningiomas are the most common of adult spinal tumors. Spinal meningiomas account for up to 45% of all intradural spinal tumors in adults and up to 25% of all spinal tumors. While spinal meningiomas are traditionally classified as intradural lesions, up to 14% may have an extradural component. Preoperative evaluation and directed use of imaging techniques are key in these rare but obser...
OBJECTIVE Few studies exist on the demographics and trends of pediatric central nervous system (CNS) tumors in Iran. In this study, we retrospectively reviewed all cases with confirmed CNS tumors admitted to Mofid Pediatric Hospital, Tehran, Iran during the last 18 years. MATERIALS & METHODS Data on gender, age of diagnosis, pathologic classification and tumor location were extracted from the...
Background : Carcinoids are neuroendocrine tumors that typically occur in the gastrointestinal and respiratory systems. Carcinoid middle ear rare. Herein, we report a case of carcinoid developed spinal metastasis required decompression surgery more than 20 years after initial surgery.
Thirty-one patients with spinal tumors underwent reconstructive surgery with our spinal instrumentation system (MPDS and MADS), with or without our new vertebral tumor prosthesis. The characteristics of the spinal tumors were analysed statistically and the treatment outcome was evaluated. There were 4 benign tumors, 6 malignant tumors, and 21 metastatic tumors. The malignant tumors involved the...
Background: In this study, we examined the epidemiologic characteristics of childhood brain tumors in patients referred to MAHAK Pediatric Cancer Treatment and Research Center (one of the main national referral centers for childhood malignancies in Iran) for treatment. Materials and Methods: This cohort (simple sampling) study consisted of 198 children less than 15 year old with CNS tumor ref...
Totally cystic intradural extramedullary lesions are uncommon and form a different spectrum of conditions as compared to the commonly seen intradural extramedullary tumors. Spinal schwannomas are benign tumors arising from spinal nerve root sheaths and are the most common intradural extramedullary spinal tumors. Though cystic changes in schwannomas are well described, most spinal schwannomas ar...
The first successful resection of a spinal cord tumor was performed by Victor Horsley in 1887 (Stein and McCormick, 1996). The diagnosis and treatment of intramedullary spinal cord tumors was first described in detail by Elsberg in 1925 (Stein and McCormick, 1996), and Greenwood reported the first large modern series in 1967. Since then, numerous radiographic, microsurgical, and electrophysiolo...
OBJECTIVE To reduce the risk of postoperative spinal instability or deformity, unilateral laminectomy (UL) has been recommended to remove spinal space-occupying lesions. The purpose of this study was to determine whether there were any advantages of UL for removal of spinal cord tumors. METHODS From May 1995 to May 2010, 94 patients with spinal cord tumors, who underwent tumor removal via UL ...
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