A giant cell tumor of the bone is a rare, typically benign tumor that often occurs in the long bones of the body, such as the femur or tibia. … When it occurs in the finger bone, it is particularly unusual. … This type of tumor is characterized by the presence of numerous multinucleated giant cells (hence the name) and typically affects individuals between the ages of 20 and 40. … Symptoms may include pain, swelling, and limited range of motion in the affected finger. … Diagnosis is typically ma