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本文采用光、电镜和组织特染等方法，对平原（海拔２０ｍ）狗急进高原（海拔４０８０ｍ）途中突发急性高原肺水肿的肺组织进行观察。结果提示：①肺泡腔内见淡嗜伊红水肿液，肺泡隔内毛细血管扩张充血，内皮细胞胞质微绒毛、胞质内微饮泡增多，基膜变宽、模糊及较大血管壁疏松裂隙样变；②肺泡上皮细胞部分核间隙变宽，胞质内线粒体增多，肺泡Ⅱ型上皮细胞胞质微绒毛增多，排列紊乱或脱落，胞质内板层小体增多及部分呈空圈样变；③肺泡隔内神经纤维呈髓鞘样变。
In this paper, the lungs of acute altitude sickness pulmonary edema were observed on the way of the plateau (altitude 20m) on the way to the plateau (elevation 4080m) by means of light, electron microscopy and special tissue dyeing. The results suggest: ① see the eosinophilic edema in the alveolar edema, alveolar septa capillary dilatation and congestion, endothelial cells, microvilli, intracellular microbubbles increased, the basement membrane widened, fuzzy and larger loose blood vessels Fissure change; ② Alveolar epithelial cells part of the nuclear gap widen, the cytoplasm of mitochondria increased, alveolar type Ⅱ epithelial cells increased microvilli, disordered arrangement or shedding, the cytoplasm of the lamellar body and some were empty ring-like Change; ③ alveolar septa nerve fibers in myelin-like changes.