نتایج جستجو برای: multiple primary brain tumor
تعداد نتایج: 2093537 فیلتر نتایج به سال:
Background: Contrary to adults, primary and metastatic involvement of CNS is a rare condition in pediatric malignant tumors. With CNS involvement the prognosis will be poor and practical treatment modalities will decline so new approaches must be reviewed. The aim of this study was to find out the incidence of CNS involvement in different childhood malignancies. Also the survival analysis w...
primary retroperitoneal mucinous tumor (prmt) of low malignant potential (border line) is an uncommon neoplasm with fewer than 50 reported cases. uncertain diagnostic imaging results make diagnosis of its origin difficult, preoperatively. later treatment planning and prognosis would be affected by exact diagnosis of the tumor origin. this study presents a case of persian woman with diagnostic, ...
Primary malignant brain tumors account for 2 percent of all cancers in U.S. adults. The most common malignant brain tumor is glioblastoma multiforme, and patients with this type of tumor have a poor prognosis. Previous exposure to high-dose ionizing radiation is the only proven environmental risk factor for a brain tumor. Primary brain tumors are classified based on their cellular origin and hi...
Morbidity and mortality associated with pediatric malignant primary brain tumors remain high in the absence of effective therapies. Macrophage-mediated phagocytosis of tumor cells via blockade of the anti-phagocytic CD47-SIRPα interaction using anti-CD47 antibodies has shown promise in preclinical xenografts of various human malignancies. We demonstrate the effect of a humanized anti-CD47 antib...
Brain tumors are the most common solid tumors in childhood. Glioblastoma multiform (GBM) is the second most common primary brain tumor in adults. It usually affects the cerebral hemispheres of adults at the 6th or 7th decade of life. In comparison to adult population, GBM is rare in pediatrics and accounts for approximately 3% of all pediatric brain tumors. Pediatric glioblastoma was defined as...
• Large vessel ischemic strokes uncommonly account for new focal deficits in patients with primary brain tumors, mimicking intratumoral hemorrhage, tumor progression, or Todd paralysis. • Stroke occurring in the context of a primary brain tumor is usually a postoperative complication, a late complication of radiation therapy, or embolic due to a hypercoagulable state induced by the tumor. • Rar...
Background. Distant organ tumor dissemination is a major cause of breast cancer-related deaths. Breast cancer can metastasize to several organs, and the most frequent metastatic sites include bones, lungs liver. There question what factors influence direction spread cells particular organ. Material Methods. We summarized data available in world literature on methods for prediction localization ...
Abstract Radiographic response assessment in neuro-oncology is critical clinical practice and trials. Conventional criteria, such as the MacDonald RANO rely on bidimensional (2D) measurements a single tumor cross section. Although criteria are established for trials, there need to address complexity of brain treatment with multiple new approaches being proposed. These include volumetric analysi...
Glioblastomas are the most aggressive fast-growing primary brain cancer which originate in glial cells of brain. Accurate identification malignant tumor and its sub-regions is still one challenging problems medical image segmentation. The Brain Tumor Segmentation Challenge (BraTS) has been a popular benchmark for automatic glioblastomas segmentation algorithms since initiation. In this year, Br...
Brain Tumor is an unwanted mass when cells grow abnormally. It puts pressure on certain areas of the brain which dangerously affects its functioning. For severe tumors like malignant, surgery not a good option because they do have definite boundaries and are closely attached with other healthy tissues brain. So chemotherapy preferable in this case to avoid damaging cells. The primary intention ...
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