细支气管肺泡癌较少见，临床表现不典型，易误诊。现将我们收治的５例中长期误诊的２例报告如下。１病例资料 ［例 １］女， ４７岁。长期咳粘液水样痰，气短 ３个月入院。 １３个月前患者咳粘液样痰，日咳痰量 ３０～５０ ｍｌ，伴低热。在外院诊为“肺炎、肺结核”，经多次抗 Bronchioloalveolar carcinoma is rare, clinical manifestations are not typical, and are often misdiagnosed. We now report the 2 cases of mid-term misdiagnosis of the 5 cases we treated as follows. 1 Case data [Example 1] Female, 47 years old. Long-term cough sputum watery sputum, shortness of breath admitted to hospital for 3 months. 13 months ago, the patient had cough and sputum, and the daily cough was 30-50 ml with low fever. In the hospital, he was diagnosed with pneumonia and tuberculosis.