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 Indian J Med Microbiol  
 

Figure 1: Periodic acid–Schiff (1) and methenamine silver negative amorphous material in the peritubular region (arrow). Normal tubular morphology (2). This material is Congo red positive (3) (star), giving an apple-green birefringence under polarized light (4) (arrow).

Figure 1: Periodic acid–Schiff (1) and methenamine silver negative amorphous material in the peritubular region (arrow). Normal tubular morphology (2). This material is Congo red positive (3) (star), giving an apple-green birefringence under polarized light (4) (arrow).