<prompt> Large placenta is seen in all of the following except:IUGRSyphilisCMVRubella  <response>: Ans. is a, i.e. IUGRRef. Dutta Obs. 7e, p 497; Williams Obs 23e, p 627; Fernando Arias 3e, p 95-96 for causes of NIHFLarge placenta is seen in case of Hydrops fetalis:Hydrops fetalisThere are two varieties of hydropsImmune hydropsNonimmune hydrops fetalis NIHF It is due to Rh isoimmunization It is due to conditions other than Rh isoimmunization It accounts for 13rd cases of hydrops fetalis It accounts for 23 cases of hydrops fetalisNonimmune hydrops:It can be caused by a number of conditionsInfections causing NIHF:Of all the PRATSCHEC agents parvovirus, rubella, AIDS, toxoplasma, syphilis, cytomegalovirus, herpes, echovirus, and coxsackievirus, only AIDS has not been reported in association with Non-lmmune Hydrops Fetalis. Parvovirus B-19 is the most common viral infection associated with NIFH.Note: In IUGR: Placenta is small and not big. 