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Congenital Cystic Adenomatoid Malformation Diagnosed During First-Trimester Ultrasound Scan

Georges A. Markou, Georgios Dafereras, Christophe Poncelet

(Department of Obstetrics and Gynecology, Rene-Dubos Hospital, Cergy-Pontoise, France)

Am J Case Rep 2018; 19:1-4

DOI: 10.12659/AJCR.906832

BACKGROUND: Congenital cystic adenomatoid malformation (CCAM) is mostly reported from the second trimester of pregnancy. We report a case of a microcystic type of CCAM that was suggested by routine ultrasound examination at a gestational age of 12 weeks.
CASE REPORT: First-trimester ultrasound screening revealed the presence of a hyperechoic image that occupied the whole of the right lung, without no other any associated complications. The cardiac and aorta deviations with diaphragmatic eversion associated with a poly-hydramnios had subsequently appeared. The diagnosis of CCAM was confirmed histologically after termination of the pregnancy at 25 weeks of gestation.
CONCLUSIONS: CCAM may occur at a very early stage of fetal lung development.

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