A multiple congenital anomalies syndrome characterized by wormian bones, dextrocardia and short stature due to a growth hormone deficiency. Additional manifestations that have been reported include brachycamptodactyly, kidney hypoplasia, bilateral cryptorchidism, midshaft hypospadias, imperforate anus/anorectal agenesis, body asymmetry, mild developmental delay, hemimegalencephaly and facial dysmorphism (hypotelorism, downslanting palpebral fissures, low-set and posteriorly angulated ears, depressed nasal bridge, and microstomia).

Increase in size of the cisterna magna, one of three principal openings in the subarachnoid space between the arachnoid and pia mater, located between the cerebellum and the dorsal surface of the medulla oblongata.