Presentation
Headache.
Patient Data
Age: 40 years
Gender: Male
From the case:
Colloid cyst with hydrocephalus
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/10064/annotated_viewer_json?lang=us"}
Hydrocephalus of the lateral ventricles with a hyperdense rounded lesions at the foramen of Munro consistent with a colloid cyst.
From the case:
Colloid cyst with hydrocephalus
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/10065/annotated_viewer_json?lang=us"}
The colloid cyst easily seen on CT is far less obvious on MRI. It is most easily seen on sagittal T1.
Case Discussion
This case of a 40-year-old woman with a colloid cyst causing obstructive hydrocephalus was subsequently histologically proven. Imaging appearances are pathognomonic.
Case courtesy of Bob Cook, MD. Western Memorial Regional Hospital Corner Brook, Newfoundland.
Unable to process the form. Check for errors and try again.