PMC8569901_01
Detailed ultrasound images. (A,B) No abnormalities were observed in this fetus at 12 weeks of gestation. (C,D) An ultrasound scan revealed abnormal echogenicity of the left lower lung (isolated lung possible) and hydramnion at 25 weeks of gestation. (E,F) Ultrasound image of abnormal echogenicity of the left lower lung (isolated lung possible) and normal amniotic fluid volume at 30 weeks of gestation. (G,H) At 34 and 37 weeks of gestation, no abnormalities were observed on ultrasound.
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F1
Consecutive systematic ultrasound examinations throughout pregnancy were as follows: ultrasonography at 12 weeks of gestation showed no significant abnormality (Figures 1A,B). On ultrasound performed at 25 weeks, abnormal echogenicity of the fetal left lower lung (possible isolated lung) and slight polyhydramnios were observed (Figures 1C,D). At 30 weeks of gestation, the ultrasound results were the same as before, but the amniotic fluid volume had returned to normal (Figures 1E,F). Ultrasonography at 34 and 37 weeks showed no significant abnormality (Figures 1G,H).
PMC8569901_02