原发性肺鳞状上皮细胞癌引起下颌骨、齿龈及指骨转移者非常少见.现将我院遇见的一例报道如下。患者,男,28岁,住院号15471。患者曾于1984年3月因发热、呛咳、痰血、胸闷而住当地医院,胸片诊断为左下肺炎经抗炎治疗好转。半月前因又出现发热、阵发性呛咳、胸闷加重伴气促,发现左全肺不张而于1984年6月22日转入我院. 患者既往无肺结核病史。有吸烟史10年,每天10支。家族及亲属中均无癌肿病史。入院检查:T.P.R正常。锁骨上淋巴结不肿大.皮肤、巩膜无黄染.头部诸器管未见异常.颈软,甲状腺不肿大,气管明显左移.左胸廓塌陷,肋间隙变窄,呼吸运动减弱,左肺叩诊浊音,呼吸音消失,语 Primary squamous cell carcinoma of the lung causes very rare mandibular, gingival and phalangeal metastases. One case reported by our hospital is reported below. Patient, male, 28 years old, hospital number 15471. The patient had lived in a local hospital in March 1984 because of fever, cough, blood stasis, and chest tightness. The chest X-ray diagnosis of left lower pneumonia was improved by anti-inflammatory treatment. Half a month ago, due to fever, paroxysmal cough, increased chest tightness, and shortness of breath, the patient discovered that left atelectasis was transferred to our hospital on June 22, 1984. The patient had no history of tuberculosis. She has a history of smoking for 10 years and 10 cigarettes per day. There was no history of cancer in the family and relatives. Admission check: T.P.R normal. The supraclavicular lymph nodes are not swollen. The skin and sclera are yellowish-free. No abnormalities are found in the head organs. The neck is soft, the thyroid gland is not swollen, and the trachea is obviously left. The left chest is collapsed, the intercostal space is narrowed, and the respiratory motion is weakened. Pulmonary dysarthria, breath sounds disappear, language