Greenberg dysplasia is a very rare lethal skeletal dysplasia characterized by fetal hydrops, short limbs and abnormal chondro-osseous calcification. The disease is characterized by early <i>in utero</i> lethality and affected fetuses are considered as nonviable.

Digits that appear disproportionately short compared to the hand/foot. The word brachydactyly is used here to describe a series distinct patterns of shortened digits (brachydactyly types A-E). This is the sense used here.