患者女,39岁。于2006年9月初出现咳嗽咳痰,痰中带血,抗感染治疗无效;两周后发现左腋下及左锁骨上包块。2006年10月至我院行左锁骨上淋巴结活检,考虑为浸润性或转移性低分化腺癌。随后查PET/CT(图1):肺部代谢未见异常,全身多发淋巴结肿大融合放射性摄取异常增高,多处骨骼FDG代谢 Female patient, 39 years old. In early September 2006 cough and expectoration, bloody sputum, anti-infective therapy ineffective; two weeks later found the left armpit and left supraclavicular mass. October 2006 to our hospital left supraclavicular lymph node biopsy, considered as invasive or metastatic poorly differentiated adenocarcinoma. Then check PET / CT (Figure 1): no abnormal lung metabolism, systemic multiple lymphadenopathy fusion radioactive uptake abnormalities, multiple bone FDG metabolism