Pure White Cell Aplasia and Necrotizing Myositis

Figure 1

Necrotizing myositis from biopsy of the left quadriceps muscle. (a) Gomori trichrome stain showing pale focal necrosis without evidence of ragged red fibers, nemaline rods, inclusions, or increased interstitial fibrosis. 20x objective. Scale bar 100 μm. (b) Haematoxylin and eosin stain showing focal necrosis without abundance of inflammatory hematopoietic cells. 200x. Scale bar 100 μm. (c) Highlight of area of focal necrosis in haematoxylin and eosin. 400x. Scale bar 100 μm. (d) Time-course of CPK elevation during hospitalization. Day 0 indicates day of admission.

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