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Section through a vegetation in simple rheumatic endocarditis (1)

In this photograph, there is much necrotic tissue but no diplococci, and at the base, reparative changes are commencing. (Source: Poynton FJ. Clinical lectures on rheumatic fever. I. Endocarditis in childhood considered as a symptom of infective diseases. Int Clin 1903;3[13th series]:181-94.)

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