A case series of GCT of tendon sheath

Tenosynovial giant cell tumor (TGCT) is a slow growing soft tissue mass, second commonest tumor of the hand. FNAC can often be inconclusive and final diagnosis can only be made after complete resection and histopathological examination. Many factors are considered for recurrence, including proximity to the distal interphalangeal joint, presence of degenerative joint disease, pressure erosions of bone in the radiographs, increased mitotic activity. This study was conducted in the Department of Orthopaedics, Medical College, Kolkata over a period of 12 months. A total of 4 cases of TGCT were operated of which two cases were confirmed preoperatively by FNAC and two had inconclusive preoperative FNAC report which were subsequently proved to be TGCT after open biopsy. Of the 4 patients one had the lesion in middle finger, two in the palm, one each along the middle finger and index finger and one lesion over the ventral aspect of index finger. Patients were investigated with routine radiographs of the involved part and ultrasound scan. One case had bony changes in form of bony indentation and calcification. Recurrence was not found in any of the cases at 6 months. The index finger TGCT developed post-operative stiffness, but regained full range of movements with physical therapy by 6 months.