Expansion of the phenotype in Hennekam syndrome: a case with new manifestations.

We report on a female with lymphedema, facial anomalies, intestinal lymphangiectasia, and moderate mental retardation consistent with the diagnosis of Hennekam syndrome. In addition, she had a number of other anomalies not previously described in this autosomal recessive disorder, including a congenital heart defect, atretic ear canals, vesicoureteral reflux, and rectal prolapse.