Figure 1-2.

Algorithm for the diagnosis of congenital muscular dystrophy. CK = creatine kinase; UCMD = Ullrich congenital muscular dystrophy; EMG = electromyography; MDC1A = merosin-deficient congenital muscular dystrophy; LAMA 2 = laminin α2 gene; SMA = spinal muscular atrophy; NEB = nebulin gene; ACTA1 = gene encoding skeletal muscle actin; RYR1 = ryanodine receptor; MDC1D = congenital muscular dystrophy type 1D; FCMD = Fukuyama congenital muscular dystrophy; SEPN1 = selenoprotein 1; αDG = α-dystroglycanopathy; MRI = magnetic resonance imaging; WWS = Walker-Warburg syndrome; MEB = muscle-eye-brain disease; CNMX = X-linked centronuclear myopathy; MDC1B = congenital muscular dystrophy type 1B; MDC1C = congenital muscular dystrophy type 1C.