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Figure 1 | Pediatric Rheumatology

Figure 1

From: Fatal myocarditis in a child with systemic onset juvenile idiopathic arthritis during treatment with an interleukin 1 receptor antagonist

Figure 1

Myocarditis with predominantly lymphocytic inflammation. Photomicrograph (H&E, ×400) showing interstitial inflammatory cells consisting mostly of small lymphocytes with round nuclei and scanty cytoplasm, though rare granulocytes are also seen. This image also shows several binucleated myocytes, a feature of myocyte hypertrophy, though this was not a consistent finding elsewhere.

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Pediatric Rheumatology

ISSN: 1546-0096