Carpal tunnel release with persistent symptoms Tendons: There is mildly increased signal within the extensor carpi ulnaris tendon which may reflect mild tendinosis. The extensor tendons are intact. The flexor tendons are intact. There is no tenosynovitis.Ligaments: The scapholunate ligament is intact. The lunotriquetral ligament is intact. The triangular fibrocartilage complex is intact.Bones: Bone marrow signal is normal. There is no dislocation or subluxation. There is no joint effusion. Mild degenerative signal is noted within the capitate and lunate.Muscles: There is no muscle tear or atrophy of the flexor or extensor compartments.Nerves: There is a bifid median nerve. The median nerve appears slightly enlarged but is of normal signal intensity and does not demonstrate abnormal enhancement following gadolinium administration. The flexor retinaculum is absent relating to prior release. There is no abnormal enhancement surrounding the flexor compartment and there is no evidence of mass lesion or mass effect. The ulnar nerve in Guyon’s canal is unremarkable.
Mildly enlarged bifid median nerve which demonstrates normal signal intensity and no abnormal enhancement. The flexor retinaculum is absent relating to prior release and there is no abnormal mass, enhancement, or mass effect surrounding the nerve.