EP12.24: Fetal abdominal cystic masses: three‐year experience of a tertiary centre

Abstract

Obstetrics and Gynecology Polyclinic Jurisic, Beograd, Serbia; 3 Public Health Centre Rakovica, Beograd, Serbia Objectives: To evaluate 3D multislice ultrasound technology in detection of fetal urinary tract anomalies. Methods: 50 patients with fetal urinary tract anomalies were included in this study. Fetuses were scanned in 2D, and 3D multislice technique, prior to confirming the urinary tract abnormality. Fetal kidneys and bladder were analysed in all 3 planes in 3D multislice mode in order to confirm urinary tract anomaly. Results: In one patient bilateral renal and bladder agenesis was detected, associated with other severe anomalies as hydrocephalus, cleft lip, oligoamnion and single umbilical artery. Kariotyping confirmed triploidy. Two fetuses had marked megavesica. Four fetuses had multiple anomalies including microcystic kidneys associated with Trisomy 13 and trisomy18. Five fetuses had multicystic dysplastic kidneys, and one of them had multicystic kidney with contralateral renal and bladder agenesis. One fetus had unilateral renal agenesis with normal contralateral kidney. Seven fetuses had ureteral stenosis and marked hydronephrosis with contralateral normal kidney. 30 fetuses had marked pyelectasia in second trimester. In one case there was progression from pyelectasia to unilateral hydronephrosis. Kariotyping in fetuses where pyelectasia occurred in second trimester showed no abnormality. Conclusions: 3D multislice ultrasound may improve diagnostic capabilities of ultrasound in detection of fetal urinary tract anomalies. 3D multislice allowed morphological analysis of fetal kidneys in various planes in order to obtain the best section for final diagnosis. Objectives: The aims of this study were to evaluate the outcome of the cases over the last three years in our centre and to investigate the capability of the prenatal sonographic examination to establish the correct diagnosis of the fetal intra-abdominal cystic masses. Methods: We performed a retrospective three-year analysis and reviewed the cases with cystic abdominal pathology from our centre. The main characteristics of the intra-abdominal masses were evaluated, and the concordance with the perinatal follow-up. EP12.24 Results:In the first trimester (FT) three cases of megacystis were diagnosed and one abdominal cyst was noted but not confirmed at the sonographic and neonatal follow-up. 21 cases of intra-abdominal cystic were diagnosed mass in the second (ST) and third trimesters (TT) of pregnancy, at a mean gestational age of 25 weeks: 13 ovarian cysts, 2 mesenteric cysts, 3 multicystic dysplastic kidneys, one urogenital sinus anomaly and 2 intestinal obstructions (duodenal atresia and intestinal duplication cyst). All the ovarian cysts were unilateral, and 7 of them were homogenous. In 5 ovarian cysts spontaneous resolution was noted in the TT. Termination of pregnancy was performed in the FT megacystis cases and 3 ST cases. Postnatally, surgery was performed in 3 cases: one ovarian torsion, one intestinal obstruction and one mesenteri...