肺原发性恶性淋巴瘤比较少见，诊断较困难；而淋巴瘤的肺、胸膜侵犯相当常见，但多见于ⅢB和Ⅳ期患者，以胸部症状为首发表现者仅占3．0％～5．0％[1]，常易引起误诊。本文报告1例原发性和5例继发性肺胸膜恶性淋巴瘤的诊治体会。1临床资料1．1一般资料见附表。1．2临床表现首起 Pulmonary primary malignant lymphomas are rare and difficult to diagnose; lung and pleural invasions of lymphomas are quite common, but are more common in patients with stage IIIB and IV, and those with chest symptoms are only 3.0% to 5. 0% [1] often leads to misdiagnosis. This article reports the diagnosis and treatment of primary and 5 secondary pulmonary pleural malignancies. 1 Clinical data 1.1 General information See the attached table. 1.2 The first clinical manifestations