Angiocentric glioma
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Angiocentric glioma (AG) refers to a rare neuroepithelial tumor when the superficial brain malignant cells enclose the brain vessels, commonly found in children and young adults. Initially identified in 2005 by Wang and his team from the University of Texas, AG was classified as Grade I by 2007 WHO Classification of Tumors of the Central Nervous System due to its benign clinical behavior, low proliferation index, and curative properties.[2] AG primarily affects children and young adults at an average initial diagnosis age of 16 years old. Over 85% AG patients experience intractable seizures since childhood, especially partial epilepsy.[3]
Due to its short history of 15 years, the rarity of occurrence, and a lack of sufficient clinical trials, AG remains elusive on understanding symptoms, treatments, and long-term follow-up. Till now, scientists and researchers have not found the exact etiology, definitive pathological tests for identification, and the effect of radiation or chemotherapy on this rare indolent glioma. Yet, a series of suspected causes are under discussion, including the possible MYB-QKI protein fusion theory on AG etiology. Currently, the standard diagnostic tools are MRI (Magnetic Resonance Imaging) and Computed Tomography scan (CT scan). In terms of therapy, patients often undergo subtotal or total resection to remove the problematic lesion and have a relatively high likelihood of curing the disease. However, they still require more extended follow-up periods after surgery for monitoring tumor recurrence and assuring seizure-free.