Radiology This round hyperdense lesion on NC-CT located in the 3rd ventricle is most likely to be a: A Arachnoid cyst B Epidermoid cyst C Colloid cyst D Giant cell astrocytoma π‘ Explanation This round hyperdense lesion on NC-CT located in the 3rd ventricle is most likely to be a: β Correct Answer: C. Colloid cyst