Denouement and Discussion
Mental retardation, skeletal and genital abnormalities, growth retardation, and a characteristic facial appearance are the major manifestations. There is usually intrauterine growth retardation with short stature and failure to thrive. Microcephaly, epicanthal folds, ptosis and strabismus are frequently found. The ears may be low set and there is a broad bridge of the nose with up-turned nares. The mouth shows a prominent maxillary alveolus, long upper lip, cleft uvula, high arched palate, and micrognathia. In boys, hypospadias and cryptorchidism are frequently found whereas the genitalia in girls are usually normal. There is frequent vomiting in infancy and an increased incidence of pyloric stenosis. Polydactyly, syndactyly, brachydactyly, and metatarsus adductus are frequent skeletal abnormalities. A single palmar crease or abnormal dermatoglyphics can be found. There is mental/motor retardation with hypertonicity and occasionally hypotonicity.
Probably autosomal recessive type of inheritance.
Special schooling may be