MediAI

 Pediatric Pineal Cyst Presenting as Headache: A Neuroimaging Case Study Case Summary An 8-year-old boy presented with persistent headaches. Brain CT in the axial plane traversing the thalami and basal ganglia revealed a well-circumscribed, cylindrical low-density area (LDA) posterior to the third ventricle. The lesion was noted to compress the internal cerebral vein , suggesting the presence of a pineal cyst . To further characterize the lesion and assess its relationship to adjacent neurovascular structures, contrast-enhanced MRI with sagittal and coronal reconstructions was recommended. What Is a Pineal Cyst? A pineal cyst is a benign, fluid-filled sac that develops within the pineal gland —a small, pine cone-shaped endocrine organ located near the center of the brain, just behind the third ventricle. These cysts are most often discovered incidentally during brain imaging performed for unrelated reasons, such as headaches or trauma. While typically asymptomatic and clinica...