Zespół Frynsa, Smeetsa i Thiry

A rare, genetic, syndromic intellectual disability disorder characterized by severe psychomotor development delay (without development of primary motor abilities and speech) and sever intellectual disability, associated with marfanoid habitus, joint laxity, bilateral hip luxation, hypotonia, scoliosis, and characteristic facial dysmorphism (i.e. high nasal bridge, sharp nose, short philtrum, large mouth, full lips and maxillary hypoplasia). There have been no further description in the literature since 1994.