摘要
To the editor： A 31-year-old primigravida was referred to our hospital at 20 weeks of gestation. Ultrasound examinations were performed using a Prosound a l0 （Aloka Co, Ltd, Tokyo, Japan） with a 2-6 MHz transabdominal probe. The initial sonographic findings were suggestive of a hyperechoic, homogeneous, and well-defined mass on the right lower lung, 18 mm at its maximum dialneter. There were no other abnormalities.
To the editor： A 31-year-old primigravida was referred to our hospital at 20 weeks of gestation. Ultrasound examinations were performed using a Prosound a l0 （Aloka Co, Ltd, Tokyo, Japan） with a 2-6 MHz transabdominal probe. The initial sonographic findings were suggestive of a hyperechoic, homogeneous, and well-defined mass on the right lower lung, 18 mm at its maximum dialneter. There were no other abnormalities.
