From the case:
Distribution of paragangliomas (diagram)
{"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/37644/annotated_viewer_json?lang=gb"}
Image depicting relative distribution of paragangliomas of the head and neck.
Image created by Frank Gaillard, and made available under the Creative Commons BY - SA - NC licence (see CC link at bottom of page)
Original background image from out of copyright Gray's Anatomy 1918.