Note the features of intrauterine fetal demise: skin slippage and reddening. These features are those of maceration and not trauma or birth defect. Note the shortened lower extremities, known as phocomelia. It was idiopathic in this case, but in the 1950's the drug thalidomide was responsible for many cases when pregnant women took it. Thus, it is very important that pregnant mothers be advised that drugs (including cigarette smoking and alcohol consumption) may have profound effects on the fetus.