From the case:
Fifth metacarpal pit
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_pin":false},"extraPropsURL":"/studies/37424/annotated_viewer_json?lang=us"}
Arrow indicates a prominent fifth metacarpal pit, that should not be mistaken for pathology.
Unable to process the form. Check for errors and try again.