What is the difference between LAMA2-RD, MDC1A, merosin-deficient congenital muscular dystrophy and LAMA2-CMD?
These are all names for the same disease. MDC1A (Merosin Deficient Congenital Dystrophy Type 1A) and LAMA2-CMD (LAMA2 Congenital Muscular Dystrophy) are older terms that tend to refer to the classic, more severe form present from birth. LAMA2-RD is the broader, more current term that covers both the severe early form and milder forms that appear later in childhood or adulthood.