Magnifying videoendoscopic findings of Peyer’s patches in the terminal ileum of Crohn’s disease

The macroscopic appearance of PPs was classified into two categories, a nodular or convolute elevation pattern (E type, fig 1A) and a flat pattern (F type, fig 1B), corresponding to lymphoid follicle and lymphocyte aggregation types, respectively, as described by Fujikura et al. 7 E-type PPs are ass...

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