五、肺中叶综合征肺中叶综合征（middlelobesyndrome）以肺中叶局限性慢性炎症和肺不张为特征。
O O B-dis I-dis I-dis I-dis I-dis I-dis B-dis I-dis I-dis I-dis I-dis I-dis O B-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis O O B-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis O B-dis I-dis I-dis O O O O