本文报告了28例肺炎性假瘤,其中24例的主要病理改变是肺泡壁间质细胞及肺泡上皮细胞增生,并伴有不同程度的炎症及肺泡内出血。作者称此为间质上皮增生型肺炎性假瘤,认为是肺炎性假瘤中的主型,病理上应与类癌型支气管腺瘤及肺的腺癌进行鉴别。 This article reports 28 cases of pneumonia pseudotumor, of which 24 cases of the main pathological changes are alveolar stromal cells and alveolar epithelial cell proliferation, accompanied by varying degrees of inflammation and alveolar hemorrhage. The authors called this an interstitial epithelial hyperplasia pneumonia pseudotumor, which is considered to be the main type of pneumonic pseudotumor. Pathologically, it should be differentiated from carcinoid bronchial adenoma and lung adenocarcinoma.