Figure 633

Early glomerular lesion in a patient with schistosomiasis. A, Mesangial proliferation. (Hematoxylin-eosin stain X 200.) B, Sch-istosomal gut antigen deposits in the mesangium. Other immunofluorescent deposits at this stage include immunoglobu-lins M and G and complement C. This lesion may be encountered in infection by Schistosoma mansoni, S. haematobium, or S. japonicum. The lesion does not necessarily progress any further. (Hematoxylin-eosin stain X 300.)

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