From the case:
Moyamoya
{"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/10390/annotated_viewer_json?_c=1699857812\u0026lang=us"}
MRA of a patient with moyamoya disease demonstrating complete obliteration of the proximal middle cerebral arteries.