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.

Posterior positions and/or vertical shortening of the infraorbital and perialar regions, or increased concavity of the face and/or reduced nasolabial angle.