<unk>  presents itself at birth or prenatally. Features of the disorder include brachycephaly (flat forehead), craniosynostosis (complete skull-joint closure) of both coronal and lambdoid sutures, facial hypoplasia (underdevelopment); bowed ulna (forearm bone) and femur (thigh bone), synostosis of the radius (forearm bone), humerus (upper arm bone) and trapezoid (hand bone); camptodactyly (fused interphalangeal joints in the fingers), thin ilial wings (outer pelvic plate) and renal malformations. Other symptoms, such as cardiac malformations, proptotic exophthalmos (bulging eyes), arachnodactyly (spider-like fingers) as well as nasal, anal and vaginal atresia (occlusion) have been reported.
Antley–Bixler syndrome
Witteveen–Kolk syndrome
Cohen-Gibson syndrome
Young–Simpson syndrome
Galloway Mowat syndrome
Mungan syndrome
Zechi-Ceide syndrome
Laugier–Hunziker syndrome