Figure 2: (a) Hematoxylin and eosin stain (H and E) showing rounding, variation in fiber size, and increased endomysial collagen. (a1) Showing normal muscle with uniform membrane labeling to merosin. (b) Patchy discontinuous labeling to merosin in all fibers indicating partial deficiency. (b1) Complete absence of merosin labeling on immunohistochemistry