Carpal tunnel syndrome

Case contributed by Dr Maulik S Patel

Presentation

Clinical diagnosis of Bilateral carpal tunnel syndrome. B/L NCV positive for CTS (right > left).

Patient Data

Age: 45
Gender: Female
Modality: Ultrasound

Right - Maximum cross sectional area of nerve just proximal to tunnel - 19 mm2

Left median nerve is bifid. Radial division is larger than ulnar.

Left  - Bifid nerve - Maximum combined cross sectional area of nerve just proximal to tunnel - 11 mm2

No mass lesion / tenosynovitis on either side.

Case Discussion

10 mm2 is commonly considered upper normal limit for non-bifid median nerve cross sectional area.

11 mm2 is commonly considered upper normal limit for bifid median nerve cross sectional area.

PlayAdd to Share

Case Information

rID: 21715
Case created: 13th Feb 2013
Last edited: 7th Feb 2016
Inclusion in quiz mode: Included

Updating… Please wait.
Loadinganimation

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.