组织细胞增生症X是一组病因不明,以淋巴样和组织细胞增生为主要病理改变的疾病。通常损害多脏器,包括肺部,其肺部病变又是引起本病死亡的重要因素。现将22例组织细胞增生症X肺部病变特点总结如下。 Histocytosis X is a group of diseases whose cause is unknown and whose main pathological changes are lymphoid and histocytosis. Often damage to multiple organs, including the lungs, the lung disease is another cause of death of this important factor. Now 22 cases of histiocytosis X lung lesions are summarized below.