Right congenital cystic adenoid malformation of the lung, CT indicates abnormal changes of the right lung, considering congenital cystic adenomatoid malformation (type I); multiple cystic transparent shadow can be seen in the right lung field, the range is about 57 × 68 × 68 mm, the boundary is clear, the size of the internal capsule is different, the largest is about 53 × 48 × 26 mm, a large amount of fluid density shadow can be seen in it, the liquid-gas plane can be seen, and a little normal lung tissue can be seen near the middle lobe of the right lung. Ultrasound revealed a huge cystic echo in the right lung.