Fig. 1From: CIDP, myasthenia gravis, and membranous glomerulonephritis – three autoimmune disorders in one patient: a case reportRepetitive nerve stimulation of the trapezius muscle (a) revealed a decrement as an electrophysiological sign of MG. The patient showed decreased motor nerve conduction velocities and prolonged distal motor latencies (of the median nerve as displayed here in (b)) as well as the absence of F-waves in the N. medianus and N. ulnaris, consistent with the diagnosis of a demyelinating polyneuropathyBack to article page