<prompt> Polyhydramnios is associated with all EXCEPT:DiabetesOpen spina bifidaMultiple pregnancyRenal agenesis  <response>: Renal agenesis 212-Dutta 6thPOLYHYDRAMNIOSOLIGOHYDROMNIOS Exceeds 200 ml liquor amniiEtiology1 Fetal anomaliesa anencephalyb open spina bifidac oesophageal or duodenal atresiad Facial clefts and neck massese Hydrops fetalis due to Rh. Isoimmunization2 Planceta - Chorioangioma of the planceta3 Multiple pregnancy - More common in uniovular4 Maternal - I Diabetes ii Cardiac or renal may lead to oedema of the placenta Liquor amnii is deficient in amount to the extent of less then 200 ml at term.Etiology -i Intrauterine infectionii Drugs - PG Inhibitors, ACE inhibitorsiii Renal agenesis or obstruction of urinary tractiv IUGR insufficiencyv Amnion nodosumvi Post maturity dysmaturityvii Fetal chromosomal anomalies 