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 Indian J Med Microbiol  
 

Figure 9 (A-D): Crohn's disease. Photomicrograph shows colonic mucosa with distorted crypt architecture (thin arrow), with a deep rail track-like ulcer (thick arrow), extending up to the deeper part of the submucosa [A: H and E ×40]. A pericryptal microgranuloma (arrow) is also noted [B: H and E ×20]. Tuberculosis. Ileal mucosa showing distorted crypt architecture with crypt branching (arrow) and flattened and broadened villi [C: H and E ×40]. Focally wide mucosal ulceration and a large necrotizing epithelioid cell granuloma is identified in submucosa, reaching up to the muscle layer (arrow) [D: H and E ×100]

Figure 9 (A-D): Crohn's disease. Photomicrograph shows colonic mucosa with distorted crypt architecture (thin arrow), with a deep rail track-like ulcer (thick arrow), extending up to the deeper part of the submucosa [A: H and E ×40]. A pericryptal microgranuloma (arrow) is also noted [B: H and E ×20]. Tuberculosis. Ileal mucosa showing distorted crypt architecture with crypt branching (arrow) and flattened and broadened villi [C: H and E ×40]. Focally wide mucosal ulceration and a large necrotizing epithelioid cell granuloma is identified in submucosa, reaching up to the muscle layer (arrow) [D: H and E ×100]