Headache and blurry vision status post craniotomy. CT evidence of stroke. There are postoperative findings related to a transcallosal resection of a colloid cyst with a small amount of pneumocephalus. There is interval resolution of previously seen susceptibility effect within the left lateral ventricle choroid plexus. There is a punctate focus of enhancement at the site of the previous colloid cyst, which appears slightly more prominent though this could be technical. The ventricles are otherwise unchanged in size. There is patchy T2 hyperintensity and restricted diffusion in the body of the corpus callosum and right cingulate gyrus along the surgical approach that measures up to 22 mm, previously 18 mm. There is a question of mild restriction diffusion versus edema at the left aspect of the corpus callosum body. There is an associated faint blush of enhancing T2 hyperintense tissue, which is probably postoperative. There is otherwise unchanged mild cerebral white matter T2 hyperintensity, which may represent chronic small vessel ischemic disease. There is no midline shift or herniation. There are postoperative findings related to rhinoplasty. There is hypertrophy of the right inferior turbinate.
1. Postoperative findings related to colloid cyst resection with slight expansion in the restriction diffusion along the right cingulate gyrus. 2. Question of mild restriction diffusion versus edema at the left aspect of the corpus callosum body. 3. Nonspecific punctate focus of enhancement at the site of the previous colloid cyst, which may be slightly more prominent though this could be technical. This could represent a vessel, granulation tissue, or residual tumor. Followup imaging is recommended to exclude recurrence.