Lymphoid tissue in the gut, the gut part of MALT , which is comprised of the following :

• Tonsils .
• Adenoids (Waldeyer's ring). The tonsils and adenoids are made of lymph tissue and help to fight off infection. Largest in childhood and gradually shrink throughout life.
• Peyer's patches .
• Lymphoid aggregates in the appendix and large intestine.
• Lymphoid tissue accumulating with age in the stomach.
• Small lymphoid aggregates in the oesophagus.
• Diffusely distributed lymphoid cells and plasma cells in the lamina propria of the gut.