Trigger finger at the wrist caused by an intramuscular lipoma within the carpal tunnel: A case report

Figure 1 Operating images of the entire surgical process. A: Preoperatively, there was an intumescence at the distal end of the forearm (orange arrow); B and C: The mass was revealed layer-by-layer during the operation; D: The mass and surrounding fascia were completely removed, and the muscle belly of the flexor digitorum superficialis was abnormally shifted down (orange arrow).