(OCAD) GCT of proximal long biceps tendon? (MRI) Leave a Comment / Uncategorized / By OCAD 20 year old patient imaged for chronic instability. Small soft-tissue mass at the proximal LBT in its intra-articular segment. Makes me think of GCT or maybe fibroma. Probably asymptomatic. What do you think? Cheers, Andrei