Spalding's sign

[1] It is named for Alfred Baker Spalding.

[4] When fetal death has occurred loss of alignment and overriding of the bones of cranial vault occur due to shrinkage of cerebrum,[5] abdominal sonar examination may reveal an overriding of the fetal cranial bones.

[6] Most estimates place the precise time of fetal death at about 4–7 days before overlapping and separation of the fetal skull bones appear.

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