Persistent median artery of the forearm with bifid median nerve
Diagnosis almost certain
Presentation
Left forearm pain.
Patient Data
Age: 13 years
Gender: Female
{"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/129951/annotated_viewer_json?lang=us"}
The median nerve is divided into two nerve bundles in the distal forearm and appear as a bifid nerve with persistent median artery located between the two nerve bundles.
{"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/129952/annotated_viewer_json?lang=us"}
Annotated image:
white arrow: persistent median artery
green arrows: bifid median nerve
Case Discussion
A bifid median nerve is an uncommon anatomical variation in the forearm, it can be accompanied by a persistent median artery.
This anatomical variant should be mentioned in the ultrasound report to avoid inadvertent injury to the nerve and artery during the surgical release of the transverse carpal ligament.
Unable to process the form. Check for errors and try again.