نتایج جستجو برای: cerebral astrocytoma

تعداد نتایج: 187104  

2008

Brain : Many, but not all, post mortem brain in cases of fatal malaria has been described as oedematous (Riganti et al., 1990). Cerebral oedema is detected less commonly during life, in two of ten unusually severe cases of cerebral malaria in Thailand, cerebral oedema developed as an agonal phenomenon (Looareesuwan et al., 1983). Macpherson et al. (1985) found minimal evidence of oedema. Oo et ...

2013
Teresa J. Wojtasiewicz Andrew F. Ducruet Sonal S. Noticewala Peter Canoll Guy M. McKhann

We report a case of a patient who developed glioblastoma in the territory of a previous infarction. Two years after an ischemic stroke, the patient presented with a cystic, necrotic, and heterogeneously enhancing mass. Open biopsy and debulking of the mass with histological analysis revealed the mass to be glioblastoma. Though several cases of posttraumatic GBM have been reported, this is the f...

2014
Deepak Kumar Singh Neha Singh Ragini Singh Nuzhat Husain

Astroblastoma is a rare glial neoplasm whose histogenesis has been clarified recently. It primarily occurs in children and young adults. We are reporting a case of 12-year-old girl child who presented with features of raised intracranial tension and generalized tonic-clonic seizures. Brain magnetic resonance imaging revealed a large well-circumscribed, cystic lesion without perifocal edema, and...

2013
Qinchuan Liang Chenkai Ma Yang Zhao Guodong Gao Jie Ma

Astrocytoma cells characteristically possess high invasion potentials. Recent studies have revealed that knockdown of signal transducers and activators of transcription 3 (STAT3) expression by RNAi induces apoptosis in astrocytoma cell. Nevertheless, the distinct roles of STAT3 in astrocytoma's invasion and recurrence have not been elucidated. In this study, we silenced STAT3 using Small interf...

2014
Soumya Alige Mahabala Rao Sujaya Srinivasan Irene Rosita Pia Patric Alangar Sathyaranjandas Hegde Bangalore Ashwathnarayanara Chandramouli Arivazhagan Arimappamagan Vani Santosh Paturu Kondaiah Manchanahalli R. Sathyanarayana Rao Kumaravel Somasundaram

Anaplastic astrocytoma (AA; Grade III) and glioblastoma (GBM; Grade IV) are diffusely infiltrating tumors and are called malignant astrocytomas. The treatment regimen and prognosis are distinctly different between anaplastic astrocytoma and glioblastoma patients. Although histopathology based current grading system is well accepted and largely reproducible, intratumoral histologic variations of...

Journal: :Arquivos de neuro-psiquiatria 2003
Eberval Gadelha Figueiredo Hamilton Matushita André Guelman G Machado José Píndaro P Plese Sérgio Rosemberg Raul Marino

Pilocytic astrocytoma (PA) is a benign tumor that rarely spread along the neuraxis. At the moment there are no more than five cases of leptomeningeal dissemination (LD) from PA at diagnosis described in the literature. Different patterns of presentation or recurrence may be noted: local recurrence, malignant transformation, multicentric disease or metastatic disease. LD and multicentric disease...

Journal: :Hong Kong medical journal = Xianggang yi xue za zhi 2012
Darshana D Rasalkar Bhawan K Paunipagar Alex Ng

We report a case of a non-infantile primary intramedullary spinal cord desmoplastic astrocytoma in an 18-year-old girl who presented with spastic paraparesis. The patient had been unable to run for 1 year. Magnetic resonance imaging of her spine showed an intramedullary solid and cystic heterogeneously enhancing lesion located at T7-T8 level. Partial excision was performed. Histology revealed a...

Journal: :Oncology reports 2014
Deguang Xing Jun Wang Shaowu Ou Yunjie Wang Bo Qiu Daling Ding Feng Guo Qinghua Gao

In the present study, we designed and conducted a series of assays to determine the expression of voltage-gated sodium channel (VGSC) neonatal isoform Nav1.5 (nNav1.5) in human brain astrocytoma and its effect on the proliferation, migration, invasion and apoptosis of astrocytoma U251 cells. The results showed that nNav1.5 mRNA and protein were expressed in both human brain astrocytoma and norm...

Journal: :iranian red crescent medical journal 0
sohrab shahzadi department of neurosurgery, [mamiloswmmhwmnu~i~ez{tyton medical science, ir iran +98-2177558081, [email protected] parisa azimi department of neurosurgery, [mamiloswmmhwmnu~i~ez{tyton medical science, ir iran +98-2177558081, [email protected]; department of neurosurgery, [mamiloswmmhwmnu~i~ez{tyton medical science, ir iran +98-2177558081, [email protected] khosrow parsa department of neurosurgery, firozgar hospital, ir iran

conclusions the stereotactic brachytherapy for patients with circumscribed and relatively small size tumors appears to be a safe, feasible, and minimally-invasive treatment. results thirteen patients were male and 16 were female, with the median age of 29 years (range, 2.5 – 64 years). the median follow-up was 95 (range, 6 – 240) months. based on pignatti classification, 10 patients were at low...

Journal: :AJR. American journal of roentgenology 1987
K G Rieth F Comite A J Dwyer M J Nelson O Pescovitz T H Shawker G B Cutler D L Loriaux

True precocious puberty occurs as a result of the premature release of luteinizing hormone-releasing hormone from the hypothalamus, which stimulates the secretion of the pituitary gonadotropins, which in turn stimulate the gonadal sex steroids. The differential diagnosis of true precocious puberty includes cerebral and idiopathic categories. This differentiation, which cannot be made endocrinol...

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