Gut-Associated Lymphoid Tissue

**Semantic type:** Tissue

**Definition:** Non-encapsulated accumulations of lymphoid tissue in the alimentary tract that form a secretory immune system containing cells committed to IgA or IgE synthesis; It includes Peyer's patches and the lymphoid tissue which is present throughout the gastrointestinal mucosa.

**Synonyms:** - GALT - GALT - GUT-ASSOCIATED LYMPHOID TISSUE - Gut Associated Lymphoid Tissue