Cheiralgia paresthetica

Wartenberg syndrome also known as cheiralgia paresthetica is due to compression of the superficial branch of the radial nerve in the distal forearm. It can be secondary to tight watch band or handcuffs, compression from distal radius fracture or idiopathic.

Clinical presentation

Patients present with pain and paresthesia along the dorsum of the distal forearm, index finger and thumb. Clinically it mimics De Quervain tenosynovitis but symptoms mostly occur at rest and Tinel test can be also positive.

Radiographic features

Ultrasound

Loss of normal fibrillary pattern with swelling and increased vascularity on color flow imaging.

MRI

• T2: characteristic increase in signal intensity along with swelling of the nerve.

Siehe auch:

• Intersektionssyndrom
• Tendovaginitis stenosans de Quervain

und weiter:

• Tendovaginitis Musculus extensor carpi ulnaris