52-year-old female. Pain. Evaluate for ulnar styloid impaction. LIGAMENTS: The scapholunate and lunotriquetral ligaments are grossly intact.TRIANGULAR FIBROCARTILAGE COMPLEX: Grossly intact.TENDONS: The extensor carpi ulnaris tendon is perched along the medial edge of the ulnar groove suggesting extensor carpi ulnaris subsheath injury. There is trace fluid around the tendon suggestive of tenosynovitis. Mild increased signal intensity within the tendon consistent with tendinosis.BONES: There is bone marrow edema in the distal ulna, likely reactive to the aforementioned ECU tendinosis. Foci of fluid signal abnormality within the carpal bones, including the radial aspect of the lunate, likely represent small degenerative cysts. Mild edema in the medial edge of the scaphoid, likely degenerative in etiology.ADDITIONAL
1. Extensor carpi ulnaris tendinosis and subsheath injury.2. Subcentimeter ganglion cyst volar to the triquetrum. 