<prompt> Giant cell tumor of tendon sheath IsTraumaticInfectiveMalignant tumorbenign tumor  <response>: Giant cell tumours of tendon sheath are benign tumours, occurs as discrete nodules on a tendon sheath along wrist and fingers. Giant cell tumor of the tendon sheath GCTTS is the second most common tumor of the hand after ganglion cysts 1,2. It is a slowly growing, usually painless benign lesion of soft tissues. Robbins basic pathology. 7tyh edition. chapter - joints and soft tissue tumours. Page no 1315. REF IMG answer is option 4. 