case_images: PMC9912991_01
case_images: Sagittal brain MRI images show a cystic lesion in the temporal region (thick arrow) with extension along the cerebral convexity (thin arrow), which demonstrates a high signal on the T2-weighted image (A) and a low signal on the T1-weighted image (B). MRI: magnetic resonance imaging
case_images: cureus-0015-00000033652-i01.jpg
case_images: PMC9912991_01_cureus-0015-00000033652-i01.jpg
case_images: FIG1
case_images: The findings were suggestive of an arachnoid cyst in the right middle cranial fossa with a rupture into the subdural space (Figures 1-2).
case_images: Axial brain MRI images show a lesion in the right middle cranial fossa (arrow) that demonstrates high signal intensity on the T2-weighted image (A) with complete suppression on the FLAIR image (B) and facilitated diffusion on the ADC map (C). These findings are consistent with an arachnoid cyst.. MRI: magnetic resonance imaging; FLAIR: fluid-attenuation inversion recovery; ADC: apparent diffusion coefficient
case_images: cureus-0015-00000033652-i02.jpg
case_images: PMC9912991_01_cureus-0015-00000033652-i02.jpg
case_images: FIG2
case_images: The findings were suggestive of an arachnoid cyst in the right middle cranial fossa with a rupture into the subdural space (Figures 1-2).