To investigate the significance of antenatal ultrasonography on the diagnosis of suprarenal masses and the effect on the postnatal strategy.

Analyzed the antenatal ultrasonographic manifestations and followed up the outcomes of 17 cases with suprarenal masses diagnosed in Beijing Obstetrics and Gynecology Hospital from January 2014 to June 2016.

Among 17 cases of fetal suprarenal masses, 19 lesions were located on the left side in 8 cases, on the right side in 7 cases, bilaterally in 2 cases; the initial sizes of lesions were 1.2-6.5 cm, with the mean of 2.8±1.4 cm; the original ultrasonographic manifestations were cystic in 4 lesions, cystic-solid in 11 lesions, solid in 4 lesions; internal blood flow was detected in 7 lesions; antenatal follow-up results were available in 3 cases, which showed slightly increased lesion size in 2 cases and remarkably increased size in 1 case, and the internal echoes of lesions was persistently cystic-solid or solid in 2 cases, while in 1 case, the cystic echo turned into cystic-solid. Among 17 cases, 4 cases terminated the pregnancy selectively. In 13 cases which continued the pregnancy, 8 cases were diagnosed as adrenal hemorrhage and the lesions disappeared on the postnatal ultrasound examinations, while 5 cases were neuroblastoma, 3 received surgery postnatally and 2 were followed up conservatively and the lesions decreased in size or completely disappeared.

Adrenal bleeding and neuroblastoma have certain characteristics on antenatal ultrasound.Antenatal ultrasound has important role in the definite diagnosis and the establishment of treatment strategy of the suprarenal masses.