case_images: PMC2876252_01
case_images: (a) CT head without contrast, (b) MRI T1 with contrast showing the cyst in the posterior third ventricle (arrow), and (c) MRI T2 showing altered flow through the Sylvian aqueduct (arrow).
case_images: CRM2010-245259.001.jpg
case_images: PMC2876252_01_CRM2010-245259.001.jpg
case_images: fig1
case_images: Initial head CT obtained in the ER to evaluate for headache showed ventriculomegaly suggestive of obstructive hydrocephalus with obstruction in the posterior third ventricle and an atypical appearance in the third ventricle region (Figure 1).
case_images: (a) MRI T2 showing migration of the cyst to the anterior third ventricle (arrow) and (b) MRI T2 demonstrating a flow void in the Sylvian aqueduct consistent with restoration of CSF flow (arrow). Of note, reduction in the size of the temporal horns is also appreciated.
case_images: CRM2010-245259.002.jpg
case_images: PMC2876252_01_CRM2010-245259.002.jpg
case_images: fig2
case_images: MRI (Figure 2). Migration of the cyst resulted in restoration of CSF flow and complete resolution of the patient's symptoms. 
case_images: Head CT without contrast demonstrating complete removal of cyst.
case_images: CRM2010-245259.003.jpg
case_images: PMC2876252_01_CRM2010-245259.003.jpg
case_images: fig3
case_images: Postoperative brain MR revealed an absence of the cyst (Figure 3).