PMC5362846_01
Electromyography of the left biceps femoris muscle showing fibrillation potentials and positive sharp waves
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Electromyography revealed fibrillation potentials and positive sharp waves in axial and appendicular muscles (Figure 1).
(a) Ulnar nerve conduction study showing decreased amplitude, temporal dispersion and polyphasia. (b) Sciatic-tibial nerve conduction study showing decreased amplitude and temporal dispersion
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The motor nerve conduction study is summarised in Table 1 (Figure 2a,b).
(a) Periodic acid-Schiff (PAS) stain of a cryosection from the cranial tibial muscle showing an intramuscular nerve branch with partial depletion of myelinated fibres and mild mononuclear cell infiltrations. With the PAS stain, myelin stains dark purple. (b) Immunofluorescence staining of cryosections from the cranial tibial muscle using an antibody against feline major histocompatibility complex II. A small cluster of mononuclear cells are highlighted in green with this antibody. (a,b) Scale bar = 50 microm
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A few of the depleted nerve branches showed an excessive mononuclear cellularity (Figure 3a,b).