PMC544880_01
Vegetation on tricuspid valve by echocardiography. Arrow denotes the vegetation.
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F1
Echocardiogram again showed vegetation on tricuspid valve and TR (Figure 1), suggesting the presence of right-sided bacterial endocarditis.
Crescentic glomerulonephritis induced by infective carditis on PAS staining and IF. A. PAS staining demonstrated circumferential and cellular crescent formation with interstitial nephritis. B. IF demonstrated C3 positive staining in mesangial area.
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F2
Acnes. A renal biopsy specimen showed typical crescentic glomerulonephritis (Figure 2A) with interstitial inflammatory cell infiltration on PAS staining. Immune reactants such as C3 (Figure 2B) and Ig M were found in peripheral capillary walls and in the mesangium.
Clinical course. PCG; penicillin G, ABPC; ampicillin, IPM; imipenem
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F3
After the short-term treatment of low dose of corticosteroid combined with continuous antibiotics, high fever and renal insufficiency were dramatically improved (Figure 3).