Simultaneous Combined Myositis, Inflammatory Polyneuropathy, and Overlap Myasthenic Syndrome

Figure 2

Pathological findings in patient 2. (a) Transverse semithin section of a sural nerve stained with Toluidine Blue: there is a moderate loss of myelinated fibers; several fibers have a too thin sheath compared to their axonal diameter. (b) Frozen section of a deltoid muscle stained with anti-CD45 antibody showing the presence of T cell infiltrates. (c) Electron micrograph of a sural nerve section showing a myelinated fiber which is surrounded by an onion bulb formation. (d) Same field as in (c) but at higher magnification.

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