Preferred Label : Simpson Golabi Behmel Syndrome Type 1;
NCIt synonyms : SGBS1;
NCIt definition : A rare, X-linked inherited syndrome caused by mutations in the GPC3 and GPC4 genes.
It is characterized by pre-and postnatal overgrowth, coarse facial features, macrocephaly,
macroglossia, congenital heart defects, and intellectual disability.;