An unusual way to confirm a ruptured cyst in a newborn

IntroductionFree fluid in the abdomen newborns is a relatively common finding. A big problem to establish exact origin of ascites. We present case newborn who had ascites unknown suspected be ruptured ovarian cyst.CaseFemale first day life with US registered and assumption that was cyst . Prepartum not registered.The puncture performed order relieve reduce amount due respiratory distress. pediatric gynecologist consulted, suggested following approach. The analyzed serum estradiol values were below 27 IU. it established over 1000 IJ, which clearly indicated originated from cyst.SummaryIf there an caused by rupture cyst, simple comparison punctate can clear diagnosis (values are several times higher compared serum). study approved Clinical Research Committee Mother Child Health Institute Serbia. Free cyst. Female If 1. Prat E, Seo-Mayer P, Agarwal S: Neonate urinary but no hydronephrosis: unusual presentation posterior urethral valves. Case Reports 2018; 2018:bcr-2018-2250532. Bascietto F, Liberati M, Marrone L, et al: Outcome fetal cysts diagnosed on prenatal ultrasound examination: systematic review meta-analysis. Ultrasound Obstet Gynecol 2017; 50:20