Computed tomography showing a 4.3 x 5.6 x 3.1 cm cerebrospinal fluid density structure over the left frontal convexity with mass effect on the adjacent frontal lobe and slight scalloping of the overlying calvarium. This area suppresses completely on fluid-attenuated inversion recovery imaging (FLAIR) and demonstrates no enhancement on post-contrast imaging. There is no abnormal signal intensity in the adjacent brain parenchyma.Cyst is denoted by a red star.