This kind of case is rare in China and rarely reported in the world Female, 26 years old, back pain for 3 months, weakness of both lower limbs for 2 weeks, and difficulty in urination and defecation for 3 days Due to a huge thoracic spine mass found in an overseas hospital, which was untreatable, she was transferred to Beihang Medical College MRI saw a huge tumor with compression fracture of T4 vertebrae, involving adjacent T3 and T5 vertebrae, compressing the spinal cord and compressing the lungs CT showed serious bone destruction After an 8-hour operation led by Director Liu Zhongjun After 8 hours of surgery led by Director Liu Zhongjun, the huge thoracic spine tumor was completely and thoroughly removed with great success. The patient was discharged smoothly after two weeks of careful postoperative care. At the time of discharge, he could already walk on the ground. At the three-month review, he had resumed normal walking. CT showed that the tumor was completely removed and the stability of the spine was rebuilt. The postoperative pathology was giant cell tumor of bone This surgery is risky, traumatic and difficult.