Short humerus: An additional antenatal sonographic feature of OFDS type II

The prevalence of skeletal dysplasia in the neonatal period is 2.4/10,000 births; it accounts for 1–2% of perinatal deaths, mainly stillbirths. A long bone measurement of less than −4 standard deviations is a definitive indication of skeletal dysplasia, whereas measurement between −2 and −4 standard deviations warrants detailed sonographic examination for other associated anomalies to arrive at a diagnosis. We report a case of oral‐facial‐digital syndrome type II that presented antenatally with polyhydramnios, short humerus, polydactyly, and duplicated thumb. © 2007 Wiley Periodicals, Inc. J Clin Ultrasound, 2007