作者报告1例19岁女性患者,左肩疼痛,声嘶,左声带麻痹,胸片发现前纵隔肿块,手术发现肿瘤累及前纵隔、心包、左肺门、隔神经,故未能手术。其肿瘤为上皮性甲状腺瘤。给予纵隔和双锁骨上区放疗,总剂量3600拉德6周以上,深度9 cm,区域26.5×25 cm,纵隔追加照射300拉德。胸片提示左 The authors reported a 19-year-old female patient with pain in the left shoulder, hoarse voice, paralysis of the left vocal cord, and anterior mediastinal mass on the chest radiograph. The surgery revealed that the tumour involving the anterior mediastinum, pericardium, left hilar, and septal nerve failed to be operated. Its tumor is an epithelial thyroid tumor. Given radiotherapy to the mediastinum and double supraclavicular area, the total dose was 3600 rads for more than 6 weeks, the depth was 9 cm, the area was 26.5×25 cm, and 300 rads were applied to the mediastinum. Chest Tips Left