REPORT OF TWO TRIPLOIDY CASES MIMICKING TRISOMY 18 WITH THE SECOND TRIMESTER TRIPLE MARKER SCREENING TEST RESULTS AND ULTRASOUND FINDINGS

ERHAN ŞİMŞEK, EBRU TARIM, ESRA KILIÇDAĞ, ZERRİN YILMAZ, FERİDE İ ŞAHİN, FİLİZ YANIK

Gynecology Obstetrics & Reproductive Medicine - 2005;11(2):130-132

Triploidy is estimated to occur in 1% of all conceptions. Most of the cases die in utero during the first trimester and the prevalence is reported to be 1 in 30 000 at 16 weeks' gestation. Presence of multiple congenital anomalies, severe oligohydramnios and intrauterine growth restriction (IUGR) along with a normal appearing placenta at the second trimester obstetric sonography may support the possibility for digynic triploidy. Here we present two cases of triploidy mimicking trisomy 18 with the 2^nd trimester triple marker screening test results and some ultrasonographic findings.