part of part of mucosa of small intestine Peyer's patch small intestine small intestine Peyer's patch MA:0001557 FMA:15054 SCTID:38986009 small intestine Peyer's patch Peyer's patch of small bowel Peyer's patch small bowel Peyer's patch EMAPA:35782 UBERON:0003454 aggregated lymphoid follicle of small intestine Nodular lymphoid structures on the serosal surface of the small intestine. Peyer's patch of small intestine noduli lymphoidei aggregati intestini tenuis add subtypes for jejunum, ileum