Objective To observe ultrasonic manifestations of ovarian cysts in neonates and infants.Methods Totally 40 neonates or infants with large or complicated ovarian cysts were retrospectively enrolled,and ultrasonic manifestations,surgical operation findings or follow-up data were analyzed.Results Among 40 cases,thin wall and echoless unicellular cysts were found in 20 cases,among which 9 were accompanied by"ascus",and these cases were classified into simple cyst group.Thick wall cysts with spot-like,flocculent or heterogeneous solid components were observed in 19 cases,including 11 cases with"double wall sign",8 with solid-liquid stratification and 1 case with"ascus",and these cases were taken as complex cyst group.Atrophic solid cyst was found in 1 case.The long diameter,anteroposterior diameter and short diameter of simple cyst group were all larger than those of complex cyst group(all P＜0.05).Ultrasound correctly diagnosed ovarian origin tumors in 14 cases(14/40,35.00％).Hemorrhage combined with torsion necrosis was detected in 18 cases of complicated ovarian cysts in surgical operation.Thirty-eight cases were confirmed by surgical pathology,while 2 cases were confirmed by follow-up,including 1 case of simple ovarian cyst spontaneously subsided and 1 case of complicated ovarian cyst fell off and migrated to right lower liver margin.Conclusion Ovarian cysts in neonates and infants could be roughly divided into simple and complex and atrophic solid ovarian cysts,with ultrasonic manifestations having certain characteristics,which were helpful for diagnosis.

Objective To observe ultrasonic manifestations of ovarian cysts in neonates and infants.Methods Totally 40 neonates or infants with large or complicated ovarian cysts were retrospectively enrolled,and ultrasonic manifestations,surgical operation findings or follow-up data were analyzed.Results Among 40 cases,thin wall and echoless unicellular cysts were found in 20 cases,among which 9 were accompanied by"ascus",and these cases were classified into simple cyst group.Thick wall cysts with spot-like,flocculent or heterogeneous solid components were observed in 19 cases,including 11 cases with"double wall sign",8 with solid-liquid stratification and 1 case with"ascus",and these cases were taken as complex cyst group.Atrophic solid cyst was found in 1 case.The long diameter,anteroposterior diameter and short diameter of simple cyst group were all larger than those of complex cyst group(all P＜0.05).Ultrasound correctly diagnosed ovarian origin tumors in 14 cases(14/40,35.00％).Hemorrhage combined with torsion necrosis was detected in 18 cases of complicated ovarian cysts in surgical operation.Thirty-eight cases were confirmed by surgical pathology,while 2 cases were confirmed by follow-up,including 1 case of simple ovarian cyst spontaneously subsided and 1 case of complicated ovarian cyst fell off and migrated to right lower liver margin.Conclusion Ovarian cysts in neonates and infants could be roughly divided into simple and complex and atrophic solid ovarian cysts,with ultrasonic manifestations having certain characteristics,which were helpful for diagnosis.