Wiedemann-Steiner syndrome is a rare, genetic multiple congenital anomalies/dysmorphic syndrome characterized by short stature, hypertrichosis cubiti, facial dysmorphism (hypertelorism, long eyelashes, thick eyebrows, downslanted, vertically narrow, long palpebral fissures, wide nasal bridge, broad nasal tip, long philtrum), developmental delay, and mild to moderate intellectual disability. It has a variable clinical phenotype with additional manifestations reported including muscular hypotonia, patent ductus arteriosus, small hands and feet, hypertrichosis on the back, behavioral difficulties, and seizures.
