태아폐엽간열발육이상에 관한 연구

Abstract

supernumerary fissure had been detected on 802 .cases (411 cases of male and 391 cases of female) of the Korean fetuses aged from the 4 th month until the 10 th month. 1. 75.6% of 802 fetuses have anomalous lungs and the rest of them have normal lungs. 2. The sum of the anomalous lungs is corresponded to 59.2% of the 1604 lungs observed, and 56.7% of the anomalous lungs are belong to right lung. 3. The frequencies of the fusion of both the right and left oblique fissures are 43.8% and 48.3% of the total fetuses respectively. Fusion of the oblique fissure on the mediastinal surfaces of both lungs is observable in 78.6 % on the right lungs and 68.3% on the left lungs of the fetuses with the fused fissure. 4. The frequencies of fusion of the horizontal fissure are observable in 48.3% of the total fetuses. Fusion on the costomediastinal surfaces of the right lungs is observable in 64.4% of the fetuses with the fusion. 5. Of the right lung supernumerary fissure is observable mainly on the lower lobe, and the frepuency is 7.5% of the total fetuses. Of the left lung the fissure is mainly on the upper lobe, and the frequency is 4.5% of the total fetuses observed. 6. Principally none of the sexual and age differences have been considered.