患者　女,63岁。背部疼痛3个月,加重1个月入院。患者于3个月前无明显诱因自觉背部疼痛,并向胸部放射,近1个月逐渐加重,且轻度呼吸困难。体检:表浅淋巴结未触及肿大。Ｂ超:肝、胰、脾、肾未见明显异常。ＣＴ检查:右上后纵隔椎旁见带状软组织肿块,形态不规则,呈侵袭性生长(图1)。 Female patient, 63 years old. 3 months of back pain and 1 month of hospitalization. The patient had no apparent incentive to feel back pain 3 months ago, radiated to the chest, gradually increased in the past 1 month, and mild dyspnea. Physical examination: superficial lymph nodes are not touched and swollen. B-mode ultrasound: No abnormalities were found in the liver, pancreas, spleen, and kidneys. CT examination showed a zonal soft tissue mass in the right upper and posterior mediastinal paravertebral vertebrae, with irregular morphology and invasive growth (Figure 1).