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ARACHNOID CYST

Arachnoid cysts are often found during CNS imaging, especially when patients have symptoms necessitating such exams. Diagnosing involves analyzing MRI or CT scans, revealing fluid-filled sacs on the brain's surface or spine. MRIs are useful for distinguishing these cysts from others, showing them as dark on T1-weighted and bright on T2-weighted images. Key diagnostic factors include the cyst's location, size, and impact on nearby structures. While some cysts are asymptomatic and found incidentally, others can cause pressure leading to symptoms like headaches and seizures. Accurate diagnosis differentiates arachnoid cysts from similar conditions, crucial for choosing appropriate treatments, ranging from observation to surgery if symptomatic. Understanding imaging traits and clinical implications is vital for effective management.