Article

A wrist mass is rarely caused by a ruptured tendon in the forearm. The common
pathologies are ganglia, tendon tenosynovitis, and giant cell tumors of tendon
sheaths. Less common causes are nerve sheath tumors, vascular lesions, or an
accessory muscle belly. The authors investigated a case of neglected ruptured
flexor carpi ulnaris tendon that mimics a mass in the wrist. To the authors'
knowledge, this is the first case report in relevant literature. During
investigation, the high-resolution musculoskeletal ultrasound suggested a soft
tissue tumor or a ruptured flexor carpi ulnaris tendon. The magnetic resonance
imaging scan indicated an accessory flexor carpi ulnaris muscle belly. The
diagnosis of ruptured flexor carpi ulnaris tendon was confirmed by surgical
exploration. This case indicates that ultrasound may be better suited than
magnetic resonance imaging in evaluating a wrist mass for its accuracy,
availability, and portability.

Langue : ANGLAIS