SGCG and sarcoglycanopathy: Among them, sarcoglycanopathies are one of the most frequent forms especially when symptoms onset during childhood.2-7 There are four sarcoglycan genes (SGCA, SGCB, SGCG and SGCD) causing autosomal recessive LGMD (LGMDR3–6 previously known as LGMD2C, D, E and F).