Spalding Sign is a radiological finding in which there is overlapping of the bones of fetal skull. This sign is a diagnostic sign of Intrauterine fetal Death. Other signs of IUD are: - Robert's Sign : A gas shadow found over the fetal heart. - Maceration: Destruction of fetal anatomy with widespread edema. - Helix Sign: Gas present in the Umbilical arteries - Ball Sign: vertebral Spine is Hyperextended Image: Springer Link.