患者女,43岁。体检时胸部X线透视发现右侧胸腔内肿块2d,无胸痛、气促、咳嗽、咳痰,否认外伤、手术史及结核等传染病史。专科检查:胸廓对称无塌陷,呼吸运动平稳,无胸膜摩擦感,双侧语颤正常,叩诊呈清音。实验室检查无异常。影像学检查:胸部X线正位片示右肺上叶外带第1、2前肋间见 Female patient, 43 years old. Chest X-ray examination at the time of examination found the right chest cavity mass 2d, no chest pain, shortness of breath, cough, sputum, denied trauma, surgical history and tuberculosis and other infectious diseases. Specialist examination: no collapse of thoracic symmetry, smooth respiratory movement, no pleural friction, bilateral normal fibrillation, percussion was clear voice. No abnormal laboratory tests. Imaging examination: chest X-ray showed right upper lobe take the first 1,2 before the intercostal see