Surgeons performed a below-elbow amputation due to probability of malignancy and fast growth of the tumor which caused a complete destruction of the bone and soft tissue surrounding it. Giant-cell tumor of bone is a type of benign (noncancerous) tumor that grows at the ends of the body's long bones. Although giant cell tumors are not cancerous, they are aggressive and can destroy the surrounding bone.It is a relatively uncommon tumor of the bone and characterized by the presence of multinucleated giant cells (osteoclast-like cells) seen on microscope. Malignancy is uncommon and occurs in about 2% of all cases, and when it does occur, it usually metastasizes to the lungs. Treatment for a giant cell tumor almost always involves surgery to remove the tumor or amputation and prevent further damage to the bone near the affected joint.Photo credit @kenzanity