Mutations in FKRP were originally reported to cause MDC1C, a severe form of congenital muscular dystrophy [17], however, later it has become clear that mutations in the FKRP gene might cause a wider range of phenotypes such as those of LGMD2I [18], MEB [19] and WWS [20]. Here, FKRP is linked to muscular dystrophy-dystroglycanopathy type B5.