All the following are seen in IUD except
Intrauterine death : Presence of gas in the fetal large vessels - Robes sign is the earliest sign seen 12 hrs after fetal death Ball sign - Crumpled up spine of the fetus or hyperflexion of the spine Spalding's sign -Overlapping of the fetal skull bones due to shrinkage of cerebrum after death of fetus. Ref:Dutta Obs 9e pg 303.
Spalding sign
Robe sign
Balls sign
Hegar sign
Abnormal labor