肺错构瘤按发生部位分为中央型和周围型。周围型肺错构瘤最常见,中央型极少见。周围型肺错构瘤一般无临床症状,常为X线胸部健康检查发现。在X线上易误诊为结核球或周围型肺癌。中央型肺错构瘤临床症状以发热、咳嗽、血痰及胸痛为主要特点;易误诊肺炎、中央型肺癌和支气管腺瘤等。本例是笔者1981年在临床工作中遇到的1例长期误诊为肺炎的病例。为吸取教训总 Pulmonary hamartomas are divided into central and peripheral types according to the site of their occurrence. Peripheral pulmonary hamartoma is the most common and central type is rare. Peripheral pulmonary hamartoma generally has no clinical symptoms and is often found on X-ray chest health examinations. X-rays are often misdiagnosed as tuberculosis or peripheral lung cancer. Central pulmonary hamartoma is characterized by fever, cough, blood stasis, and chest pain. It is often misdiagnosed as pneumonia, central lung cancer, and bronchial adenoma. This case is a case of chronic pneumonia that was encountered in the author’s clinical work in 1981. Total lessons learned