نتایج جستجو برای: gemistocytic glioblastomas
تعداد نتایج: 2385 فیلتر نتایج به سال:
we report two cases of de novo gemistocytic glioblastomas. in case one, a 35 year male presented with features of raised intracranial pressure and rapid neurological deterioration. in case 2; a 73 year old male presented with rapid neurological deterioration and focal neurological deficits. in both cases imaging findings were suggestive of high grade malignancy involving the brain. this was con...
We report two cases of de novo Gemistocytic glioblastomas. In case one, a 35 year male presented with features of raised intracranial pressure and rapid neurological deterioration. In case 2; a 73 year old male presented with rapid neurological deterioration and focal neurological deficits. In both cases imaging findings were suggestive of high grade malignancy involving the brain. This was ...
PURPOSE Tumor-infiltrating lymphocytes (TIL) have prognostic significance in many cancers, yet their roles in glioblastoma have not been fully defined. We hypothesized that TILs in glioblastoma are associated with molecular alterations, histologies, and survival. EXPERIMENTAL DESIGN We used data from The Cancer Genome Atlas (TCGA) to investigate molecular, histologic, and clinical correlates ...
Published data on prognostic and predictive factors in patients with gliomas are largely based on clinical trials and hospital-based studies. This review summarizes data on incidence rates, survival, and genetic alterations from population-based studies of astrocytic and oligodendrogliomas that were carried out in the Canton of Zurich, Switzerland (approximately 1.16 million inhabitants). A tot...
Purpose: Tumor-infiltrating lymphocytes (TIL) have prognostic significance in many cancers, yet their roles in glioblastoma have not been fully defined. We hypothesized that TILs in glioblastoma are associated with molecular alterations, histologies, and survival. Experimental Design: We used data from The Cancer Genome Atlas (TCGA) to investigate molecular, histologic, and clinical correlates ...
The epitope H contains an O-linked N-acetylglucosamine residue in a specific conformation and/or environment recognized by the monoclonal antibody H. It has previously been shown that the epitope H is present in several types of normal and pathological cells and in several polypeptides. In normal human brains the epitope H is present mostly to a minority of fibrous astrocytes, whereas it is gre...
In most instances, gemistocytic astrocytoma progresses to anaplastic astrocytoma at the time of recurrence. Here, we report an unusual case where a gemistocytic astrocytoma converted to a more benign fibrillary histology after temozolomide/radiation therapy. We present the case of a 26-year-old woman with a history of fibrillary astrocytoma that was followed over a span of eight years and under...
OBJECTIVE Although gemistocytic astrocytomas are graded as World Health Organization II astrocytomas, they behave more aggressively than other astrocytomas. Their proliferative potential is low, and it remains an intriguing question why these tumors are so biologically "successful." They show a high mutation rate of the P53 gene, cytological abnormalities, and frequent perivascular mononuclear ...
Fibrosarcoma of the paranasal sinuses is extremely rare pathology and there is limited report in the literature. We report synchronous presentation of maxillary sinus fibrosarcoma and gemistocytic astrocytoma which is, to our knowledge, unique in the literature. Both tumors metastases to other organ rarely and the metastatic spread of gemistocytic astrocytoma to fibrosarcoma or vice versa have ...
PURPOSE The purpose of this study was to analyze retrospectively timing, frequency, and prognostic impact of TP53 mutations and P53 protein accumulation in supratentorial WHO grade II astrocytomas and oligoastrocytomas of adult patients. EXPERIMENTAL DESIGN We included 159 consecutively treated patients (1991-1998), and each tumor was screened for TP53 mutations and P53 protein overexpression...
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