患者男性,59岁,因胸闷、气短两月余入院。临床ＣＴ显示:前上纵隔包块,并伴有少量心包积液及胸腹水,其它检查均为阴性,临床初步诊断为“原发性支气管肺癌”。在ＣＴ诱导下行细针穿刺术。巨检:送检为细针穿刺吸取的碎组织数块,组织共15ｃｍ×1.0ｃｍ×15ｃｍ,褐红色,质较脆。镜检 The patient was a 59-year-old man with chest tightness and shortness of breath. He was admitted to the hospital for more than two months. Clinical CT showed that the anterior superior mediastinal mass was accompanied by a small amount of pericardial effusion and pleural effusion and ascites. Other tests were negative. The primary clinical diagnosis was “primary bronchial carcinoma.” Intracranial fine needle aspiration was induced by CT. Giant inspection: The inspection was a few pieces of broken tissue taken by fine needle puncture. The tissue was 15cm×1.0cm×15cm in total, brownish red, and the quality was brittle. Microscopic examination