Sonographic demonstration of fetal death in the absence of radiographic abnormality.

A case of intrauterine fetal demise was monitored over a 5-week period with serial sonographs and simultaneous radiographs. The diagnosis could not be established from the radiographs even 7 weeks postmortem. However, the initial sonographs established the diagnosis and subsequently presented a picture of increasing degeneration. Possible explanations for this are suggested.