Lujan-Fryns syndrome (X-linked mental retardation with marfanoid habitus): report of three cases and review.

We report on three further cases of mildly retarded patients with marfanoid habitus and a pattern of minor anomalies. These patients are likely to be affected with the Lujan-Fryns syndrome. We have reviewed twenty cases from the literature for a better delineation of this newly recognized disorder.