Colloid Cyst Presenting as CSF Rhinorrhea: Case Report

Colloid cysts are non-neoplastic masses that typically arise in the brain and account for a small percentage of brain tumors.While they may be found incidentally in many cases, they can gradually grow and lead to various symptoms and complications.The use of diagnostic methods such as computed tomography (CT) scans and magnetic resonance imaging (MRI) has increased the detection of colloid cysts.Surgical intervention is often necessary for symptomatic cysts, and different surgical approaches can be utilized, including minimally invasive endoscopic removal.We present a case of a 43-year-old patient with a large symptomatic colloid cyst in the third ventricle, managed through endoscopic removal.The patient initially presented with severe headache, chills, and rhinorrhea, and was initially diagnosed with bacterial meningitis.Further imaging studies confirmed the presence of a colloid cyst, and surgical intervention was performed successfully.This case highlights the importance of considering colloid cysts in the differential diagnosis of persistent headaches and CSF rhinorrhea and emphasizes the significance of early identification and appropriate management of these cysts to prevent serious complications.