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For people with brain tumors, radiation can be an effective treatment because chemotherapy is often less effective due to the blood–brain barrier. [ citation needed ] Unfortunately for some patients, as time passes, people who received radiation therapy may begin experiencing deficits in their learning, memory, and spatial information ...
Acute radiation syndrome (ARS), also known as radiation sickness or radiation poisoning, is a collection of health effects that are caused by being exposed to high amounts of ionizing radiation in a short period of time. [1] Symptoms can start within an hour of exposure, and can last for several months.
This is an accepted version of this page This is the latest accepted revision, reviewed on 3 February 2025. Neoplasm in the brain Medical condition Brain tumor Other names Intracranial neoplasm, brain tumour, brain cancer Brain metastasis in the right cerebral hemisphere from lung cancer, shown on magnetic resonance imaging Specialty Neurosurgery, neuro-oncology Symptoms Vary depending on the ...
Treatment effect or radiation necrosis after stereotactic radiosurgery (SRS) for brain metastases is a common phenomenon often indistinguishable from true progression. Radiomics demonstrated significant differences in a set of 82 treated lesions in 66 patients with pathological outcomes.
Radiation-induced brain edema (RIBE) is a potentially life-threatening complication of brain tissue radiation and is characterized radiation necrosis, endothelial cell dysfunction, increased capillary permeability, and breakdown of the blood–brain barrier. [13]
The radiation may be delivered from several angles or in a shaped beam to maximize the dose delivered to the tumor while reducing the harm to healthy parts of the body. [1] Treatment is commonly given daily for 4–8 weeks. [19] In internal radiation therapy, the source of radiation is inserted into the patient's body.
Micrograph showing cortical pseudolaminar necrosis. H&E-LFB stain.. Cortical pseudolaminar necrosis, also known as cortical laminar necrosis and simply laminar necrosis, is the death of cells in the cerebral cortex of the brain in a band-like pattern, [1] with a relative preservation of cells immediately adjacent to the meninges.
If this linear model is correct, then natural background radiation is the most hazardous source of radiation to general public health, followed by medical imaging as a close second. Quantitative data on the effects of ionizing radiation on human health is relatively limited compared to other medical conditions because of the low number of cases ...